User Guide

Shop 8th Jewelry Care Guide

Your jewelry is designed to last, but every piece deserves gentle care. Here are our recommendations to keep your treasures sparkling for years.

S925 Sterling Silver with Zirconia

Avoid prolonged exposure to water, lotions, or perfumes, which may dull the sparkle of the zirconia stones.
Clean with a soft polishing cloth and a mild soap solution when needed.
Store in a dry pouch or box to prevent tarnishing and scratching.

S925 Sterling Silver with Moissanite

Moissanite is extremely durable but can attract oils and dust; gently clean with warm water and mild soap.
Use a soft brush to restore brilliance to the stone.
Avoid harsh chemicals that may affect the silver setting.
Store separately to prevent scratches on the silver or stone.

S925 Sterling Silver (Plain)

Sterling silver naturally tarnishes; polish regularly with a silver cloth to maintain shine.
Remove before swimming, bathing, or gym activities to prevent chemical reactions.
Store in airtight pouches or anti-tarnish bags to slow down oxidation.

Plated Silver with Zirconia

The plating requires extra care — avoid exposure to perfumes, sweat, and cleaning products.
Do not use abrasive cloths; instead, wipe gently with a soft microfiber cloth.
Keep away from moisture to protect both the plating and the zirconia sparkle.
Always store separately to prevent chipping or wear of the plating.

Plated Gold with Zirconia

Gold plating can wear off over time if not cared for; remove before showering, exercising, or applying lotions.
Clean gently with a damp cloth — avoid chemical cleaners.
Store in a lined jewelry box or pouch to preserve both plating and stone brilliance.
Rotate wear with other jewelry to extend the life of the plating.

General Tip for All Jewelry

- Always put your jewelry on last (after perfumes, lotions, and hair products) and take it off first when undressing.
- Regular care preserves not just the shine but also the value of your Shop 8th pieces.

Understanding Your Stones:
Diamonds, Moissanite & Zirconia 1. Natural Diamond

Origin: Formed naturally in the earth’s mantle over billions of years under extreme pressure and heat.
Composition: Pure carbon crystal.
Hardness: 10/10 on the Mohs scale — the hardest known natural material.
Sparkle: Exceptional brilliance and fire (the classic diamond look).
Value: Rarest and most expensive due to natural origin and mining process.
Best For: Engagement rings, heirloom jewelry, and luxury investment pieces.

Lab-Grown Diamond

Origin: Created in a lab using advanced technology (HPHT or CVD) that replicates natural diamond formation.
Composition: Pure carbon, identical to natural diamond.
Hardness: 10/10 (same as mined diamond).
Sparkle: Visually indistinguishable from natural diamonds to the naked eye.
Value: More affordable than natural diamonds, but still high-quality and ethical.
Best For: Customers who want a diamond look and feel with sustainable and budget-friendly options.

Moissanite

Origin: Originally discovered in meteorites; today, grown in labs.
Composition: Silicon carbide.
Hardness: 9.25/10 (second only to diamond in durability).
Sparkle: Extremely fiery — often shows more rainbow flashes than diamonds.
Value: Much more affordable than diamonds, durable, and brilliant.
Best For: Everyday wear, engagement rings, or customers who want brilliance without the diamond price.

Cubic Zirconia (CZ / Zirconia)

Origin: Lab-created stone (synthetic crystal).
Composition: Cubic crystalline form of zirconium dioxide.
Hardness: 8–8.5/10 (less durable than diamond or moissanite).
Sparkle: Bright but with less fire than diamonds; may cloud or scratch over time.
Value: Very affordable, but not considered a long-term or heirloom stone.

Stone Shape Guide
Round Cut

Most popular shape for engagement rings and fine jewelry.
Classic, timeless, and maximizes brilliance and sparkle.
Works beautifully in solitaires, halos, and pavé settings.

Princess Cut (Square)

Sharp, modern square shape with pointed corners.
Known for brilliance with a contemporary feel.
Often chosen by those who love bold elegance.

Oval Cut

Elongated shape that makes fingers look slender.
Elegant and classic with a touch of uniqueness.
Offers great brilliance with a slightly softer look than round.

Cushion Cut

Square or rectangular with rounded corners (like a pillow).
Vintage-inspired, romantic, and soft in appearance.
Popular for engagement rings with a timeless feel.

Emerald Cut

Rectangular step-cut facets (like stairs).
Creates a hall-of-mirrors effect with understated sparkle.
Perfect for those who love sophistication and clean lines.

Radiant Cut

Rectangle (like emerald) but with brilliant-style facets for extra sparkle.
Combines the elegance of emerald with the fire of round.

Pear Cut (Teardrop)

One rounded end and one pointed end.
Unique, feminine, and elongates the finger.
Symbolizes tears of joy or raindrops — often chosen for special meaning.

Marquise Cut

Elongated oval with pointed ends.
Maximizes perceived size (appears larger than its carat weight).
Regal and dramatic, with a vintage feel.

Heart Shape

Symbol of love and romance.
Playful yet sentimental — perfect for gifts and statement rings.

Asscher Cut

Square shape with step-cut facets (like a square emerald).
Distinctive “hall of mirrors” effect.
Vintage and art-deco inspired.

Inside Diameter (mm)	UK Size	US Size
14.0 mm	F	3
14.4mm	G	3.5
14.8mm	H	4
15.2	I	4.5
15.6mm	J	5
16.0mm	K	5.5
16.5mm	L	6
16.9mm	M	6.5
17.3mm	N	7
17.7mm	O	7.5
18.2mm	P	8
18.6mm	Q	8.5
19.0mm	R	9
19.4mm	S	9.5
19.8mm	T	10
20.2mm	U	10.5
20.6mm	V	11
21.0mm	W	11.5
21.4mm	X	12
21.8mm	Y	12.5
22.2mm	Z	13

Stone Types

Stone	Hardness (Mohs)	Sparkle & Fire	Price Level	Key Benefit
Natural Diamond	10	Classic brilliance	$$$$	Rarest & most prestigious
Lab-Grown Diamond	10	Same as natural	$$$	Ethical & affordable diamond
Moissanite	9.25	Very fiery (rainbow)	$$	Durable & brilliant
Zirconia (CZ)	8–8.5	Bright, less durable	$	Affordable beauty