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Emerald|Natural|GIA

0.51ct J SI2 Emerald Natural Diamond

GD • J/SI2 • GIA 2557823880

Certificate GIA 2557823880

Diamond specifications and retailer prices

From £246 GBP
$329 USD
As of October 31, 2026
Save £83 GBP (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £328 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded J 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 2557823880. Listed at 3 retailers as of October 31, 2026, with prices from £246 to £328, a £83 spread on the same certified stone. 77 Diamonds lists it at £328. 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
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557823880
Dimensions4.91 × 3.78 × 2.71 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
4.91 mm3.78 mm0.51 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557823880
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.8%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £328 GBP|Low: £246 GBP|High: £331 GBP|Avg: £289 GBP|+2.3%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 2£246 GBP
Retailer 3£261 GBP
77 Diamonds£328 GBP

39 data points across 3 retailers

3 retailers£246 GBP to £328 GBP

B+
Cheapest Retailer
-
£246 GBP
$329 USD
Final sale: no returns
B+
Retailer 2
-
£261 GBP
SGD 472 SGD
View
Most Expensive
B+
77 Diamonds
EMCPXMQKTMU7 · Nov 1
£328 GBP
View
2 more retailers have this diamond
Prices start from £246 GBPSave up to £83 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
£246 GBP