Emerald|Natural|GIA

0.51ct G SI2 Emerald Natural Diamond

GD • G/SI2 • GIA 2557963389

Certificate GIA 2557963389

Diamond specifications and retailer prices

From £409 GBP
As of November 4, 2026
Save £572 GBP (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,334 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2557963389. Listed at 13 retailers as of November 4, 2026, with a 140% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557963389
Dimensions5.27 × 3.68 × 2.62 mm
L/W Ratio1.43
Culet sizeNone
Key to symbols
Cloud
Top View
5.27 mm3.68 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557963389
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 71.4%

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: £1,334 GBP|Low: £370 GBP|High: £1,334 GBP|Avg: £569 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4£409 GBP
Retailer 10£426 GBP
Retailer 5£441 GBP
Retailer 11£458 GBP
Retailer 12£491 GBP
Retailer 2£505 GBP
Retailer 7£516 GBP
Retailer 3£523 GBP
Retailer 13£533 GBP
Retailer 6£570 GBP
Retailer 8£921 GBP
Retailer 9£981 GBP
NZ Jewellers£1,334 GBP

35 data points across 13 retailers

13 retailers£409 GBP to £981 GBP

B+
Cheapest Retailer
-
£409 GBP
B+
Retailer 2
-
£426 GBP
View
B+
Retailer 3
-
£441 GBP
View
B+
Retailer 4
-
£458 GBP
View
B
Retailer 5
-
£491 GBP
View
B
Retailer 6
-
£505 GBP
View
B
Retailer 7
-
£516 GBP
View
B
Retailer 8
-
£523 GBP
View
B
Retailer 9
-
£533 GBP
View
B
Retailer 10
-
£570 GBP
View
C
Retailer 11
-
£921 GBP
View
C
Retailer 12
-
£981 GBP
View
Most Expensive
NZ Jewellers
926abc45-72f2-40db-83d7-2b32922291ab · Nov 5
£1,334 GBP
$1,796 USD
View
Price under review
12 more retailers have this diamond
Prices start from £409 GBPSave up to £572 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
£409 GBP