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Cushion|Natural|GIA

1.51ct L SI2 Cushion Natural Diamond

VG • L/SI2 • GIA 1455553979

Certificate GIA 1455553979

Diamond specifications and retailer prices

From £1,240 GBP
As of November 4, 2026
Save £743 GBP (37%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,983 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1455553979. Listed at 5 retailers as of November 4, 2026, with prices from £1,240 to £1,983, a £743 spread on the same certified stone. Yorxs lists it at £1,983. 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
L
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1455553979
Dimensions6.23 × 5.99 × 4.30 mm
L/W Ratio1.04
Top View
6.23 mm5.99 mm1.51 ctL / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1455553979
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.8%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £1,919 GBP|Low: £1,210 GBP|High: £1,988 GBP|Avg: £1,608 GBP|+1.3%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 6, 2026
Retailer 2£1,240 GBP
Retailer 3£1,284 GBP
Retailer 1£1,919 GBP
Yorxs£1,983 GBP

40 data points across 4 retailers

5 retailers£1,240 GBP to £1,983 GBP

A
Cheapest Retailer
-
£1,240 GBP
B+
Retailer 2
-
£1,284 GBP
View
B+
Retailer 3
-
£1,325 GBP
View
B+
Retailer 4
-
£1,919 GBP
View
Most Expensive
B
Yorxs
430094092 · Nov 6
£1,983 GBP
€2,528 EUR
View
4 more retailers have this diamond
Prices start from £1,240 GBPSave up to £743 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 Cushion
£1,240 GBP