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Emerald|Natural|GIA

0.51ct H SI2 Emerald Natural Diamond

GD • H/SI2 • GIA 5566341910

Certificate GIA 5566341910

Diamond specifications and retailer prices

From £389 GBP
As of November 4, 2026
Save £549 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £938 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter 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 5566341910. Listed at 7 retailers as of November 4, 2026, with prices from £389 to £938, a £549 spread on the same certified stone. MOH London lists it at £938. 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

0.51
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566341910
Dimensions5.25 × 3.69 × 2.61 mm
L/W Ratio1.42
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
5.25 mm3.69 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566341910
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £938 GBP|Low: £312 GBP|High: £940 GBP|Avg: £480 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7£312 GBP
Retailer 5£389 GBP
Retailer 6£420 GBP
Retailer 3£507 GBP
Retailer 4£509 GBP
Retailer 2£546 GBP
MOH London£938 GBP

34 data points across 7 retailers

7 retailers£389 GBP to £938 GBP

Retailer 1
-
£312 GBP
Price last confirmed 30 days ago
B+
Retailer 2
-
£389 GBP
View
B
Retailer 3
-
£420 GBP
View
B
Retailer 4
-
£507 GBP
View
B
Retailer 5
-
£509 GBP
View
B
Retailer 6
-
£546 GBP
View
Most Expensive
C
MOH London
7212E739B · Nov 4
£938 GBP
View
6 more retailers have this diamond
Prices start from £389 GBPSave up to £549 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+
0.51ct Emerald
£389 GBP