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Emerald|Natural|GIA

0.51ct G SI2 Emerald Natural Diamond

GD • G/SI2 • GIA 2566483464

Certificate GIA 2566483464

Diamond specifications and retailer prices

From £254 GBP
As of November 5, 2026
Save £549 GBP (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £803 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 G 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 2566483464. Listed at 7 retailers as of November 4, 2026, with prices from £254 to £803, a £549 spread on the same certified stone. MOH London lists it at £803. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566483464
Dimensions6.21 × 3.55 × 2.11 mm
L/W Ratio1.75
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather
Top View
6.21 mm3.55 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2566483464
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £803 GBP|Low: £254 GBP|High: £809 GBP|Avg: £462 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4£254 GBP
Retailer 5£360 GBP
Retailer 3£426 GBP
Retailer 6£436 GBP
Retailer 7£446 GBP
Retailer 2£522 GBP
MOH London£803 GBP

22 data points across 7 retailers

7 retailers£254 GBP to £803 GBP

A
Cheapest Retailer
-
£254 GBP
B+
Retailer 2
-
£360 GBP
View
B+
Retailer 3
-
£426 GBP
View
B+
Retailer 4
-
£436 GBP
View
B+
Retailer 5
-
£446 GBP
View
B
Retailer 6
-
£522 GBP
View
Most Expensive
C
MOH London
029A5B045 · Nov 4
£803 GBP
View
6 more retailers have this diamond
Prices start from £254 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.

A
0.51ct Emerald
£254 GBP