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Emerald|Natural|GIA

0.51ct G SI2 Emerald Natural Diamond

VG • G/SI2 • GIA 2546595455

Certificate GIA 2546595455

Diamond specifications and retailer prices

From £266 GBP
As of November 4, 2026
Save £838 GBP (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,104 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2546595455. Listed at 7 retailers as of November 4, 2026, with prices from £266 to £1,104, a £838 spread on the same certified stone. NZ Jewellers lists it at £1,104. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546595455
Dimensions5.16 × 3.96 × 2.68 mm
L/W Ratio1.30
Top View
5.16 mm3.96 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546595455
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

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 4
Current: £1,104 GBP|Low: £258 GBP|High: £1,169 GBP|Avg: £473 GBP|-5.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6£266 GBP
Retailer 4£302 GBP
Retailer 8£334 GBP
Retailer 2£360 GBP
Retailer 5£372 GBP
Retailer 3£388 GBP
Retailer 7£480 GBP
NZ Jewellers£1,104 GBP

43 data points across 8 retailers

7 retailers£266 GBP to £1,104 GBP

A
Cheapest Retailer
-
£266 GBP
Final sale: no returns
A
Retailer 2
-
£302 GBP
View
A
Retailer 3
-
£360 GBP
View
A
Retailer 4
-
£372 GBP
View
A
Retailer 5
-
£388 GBP
View
B+
Retailer 6
-
£480 GBP
View
Most Expensive
B
NZ Jewellers
cb81a11b-b802-41d4-8bac-0587c149047a · Nov 5
£1,104 GBP
$1,486 USD
View
6 more retailers have this diamond
Prices start from £266 GBPSave up to £838 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
£266 GBP