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Cushion|Natural|GIA

1.51ct L SI2 Cushion Natural Diamond

GD • L/SI2 • GIA 2554510619

Certificate GIA 2554510619

Diamond specifications and retailer prices

From £1,729 GBP
As of November 6, 2026
Save £648 GBP (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,377 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2554510619. Listed at 8 retailers as of November 6, 2026, with prices from £1,729 to £2,377, a £648 spread on the same certified stone. Yorxs lists it at £2,377. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554510619
Dimensions7.83 × 5.81 × 4.02 mm
L/W Ratio1.35
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
7.83 mm5.81 mm1.51 ctL / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554510619
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.2%

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 6
Current: £1,933 GBP|Low: £1,591 GBP|High: £2,391 GBP|Avg: £1,936 GBP|+6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 6, 2026
Retailer 6£1,729 GBP
Retailer 4£1,802 GBP
Retailer 3£1,914 GBP
Retailer 1£1,933 GBP
Retailer 7£1,988 GBP
Retailer 5£2,019 GBP
Retailer 2£2,025 GBP
Yorxs£2,377 GBP

43 data points across 8 retailers

8 retailers£1,729 GBP to £2,377 GBP

B+
Cheapest Retailer
-
£1,729 GBP
B+
Retailer 2
-
£1,802 GBP
View
Retailer 3
-
£1,914 GBP
View
Price last confirmed 9 days ago
B
Retailer 4
-
£1,933 GBP
View
B
Retailer 5
-
£1,988 GBP
View
B
Retailer 6
-
£2,019 GBP
View
B
Retailer 7
-
£2,025 GBP
View
Most Expensive
C
Yorxs
3EB0BD655 · Nov 6
£2,377 GBP
€3,030 EUR
View
7 more retailers have this diamond
Prices start from £1,729 GBPSave up to £648 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+
1.51ct Cushion
£1,729 GBP