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Emerald|Natural|GIA

0.42ct H SI2 Emerald Natural Diamond

GD • H/SI2 • GIA 7566300042

Certificate GIA 7566300042

Diamond specifications and retailer prices

From £216 GBP
$290 USD
As of October 28, 2026
Save £85 GBP (28%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £301 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.42ct natural emerald diamond

This 0.42ct natural emerald sits in the sub-half-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7566300042. Listed at 2 retailers as of October 28, 2026, with prices from £216 to £301, a £85 spread on the same certified stone. 77 Diamonds lists it at £301. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7566300042
Dimensions5.20 × 3.70 × 2.52 mm
L/W Ratio1.41
Culet sizeNone
Key to symbols
Crystal
Top View
5.20 mm3.70 mm0.42 ctH / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 7566300042
Side View
Table 71.0%CrownGirdle: MED-THKPavilionCuletDepth 68.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: £301 GBP|Low: £216 GBP|High: £301 GBP|Avg: £262 GBP|+5.6%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2£216 GBP
77 Diamonds£301 GBP

34 data points across 2 retailers

2 retailers£216 GBP to £301 GBP

B+
Cheapest Retailer
-
£216 GBP
$290 USD
Most Expensive
B
77 Diamonds
EMCPZKHMVRXZ · Nov 1
£301 GBP
View
1 more retailer has this diamond
Prices start from £216 GBPSave up to £85 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.42ct Emerald
£216 GBP