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Emerald|Natural|GIA

1.51ct K SI1 Emerald Natural Diamond

GD • K/SI1 • GIA 2557391749

Certificate GIA 2557391749

Diamond specifications and retailer prices

From £1,857 GBP
As of November 5, 2026
Save £580 GBP (24%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,438 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.51ct natural emerald diamond

This 1.51ct natural emerald sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557391749. Listed at 8 retailers as of November 5, 2026, with prices from £1,857 to £2,438, a £580 spread on the same certified stone. GemTrove lists it at £2,438. 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

1.51
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557391749
Dimensions7.64 × 5.46 × 3.65 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
7.64 mm5.46 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557391749
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.9%

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: £1,857 GBP|Low: £1,704 GBP|High: £2,557 GBP|Avg: £2,092 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 1£1,857 GBP
Retailer 4£1,886 GBP
Retailer 3£1,909 GBP
Retailer 7£1,935 GBP
Retailer 2£2,026 GBP
Retailer 6£2,188 GBP
Retailer 5£2,251 GBP

43 data points across 7 retailers

8 retailers£1,857 GBP to £2,438 GBP

A
Cheapest Retailer
-
£1,857 GBP
A
Retailer 2
-
£1,886 GBP
View
B+
Retailer 3
-
£1,909 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,935 GBP
View
B+
Retailer 5
-
£2,026 GBP
View
B+
Retailer 6
-
£2,188 GBP
View
B+
Retailer 7
-
£2,251 GBP
View
Most Expensive
B+
GemTrove
GT-N-01261421-98 · Nov 6
£2,438 GBP
A$5,048 AUD
View
7 more retailers have this diamond
Prices start from £1,857 GBPSave up to £580 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
1.51ct Emerald
£1,857 GBP