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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 1565218699

Certificate GIA 1565218699

Diamond specifications and retailer prices

From £3,976 GBP
₹508,164 INR
As of November 2, 2026
Save £1,471 GBP (27%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,447 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565218699. Listed at 11 retailers as of October 30, 2026, with prices from £3,976 to £5,447, a £1,471 spread on the same certified stone. Reve Diamonds lists it at £5,447. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1565218699
Dimensions8.17 × 5.85 × 3.83 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.17 mm5.85 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1565218699
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.4%

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 2
Current: £4,450 GBP|Low: £3,976 GBP|High: £5,447 GBP|Avg: £4,721 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
November 2, 2026
Retailer 3£3,976 GBP
Retailer 2£4,247 GBP
Retailer 6£4,316 GBP
Retailer 1£4,450 GBP
Retailer 7£4,587 GBP
Retailer 5£4,712 GBP
Retailer 10£4,918 GBP
Retailer 9£5,035 GBP
Retailer 8£5,044 GBP
Retailer 4£5,428 GBP
Reve Diamonds£5,447 GBP

4 data points across 11 retailers

11 retailers£3,976 GBP to £5,447 GBP

A
Cheapest Retailer
-
£3,976 GBP
₹508,164 INR
B+
Retailer 2
-
£4,247 GBP
$5,699 USD
View
Final sale: no returns
B+
Retailer 3
-
£4,316 GBP
A$8,910 AUD
View
B+
Retailer 4
-
£4,450 GBP
$5,972 USD
View
B+
Retailer 5
-
£4,587 GBP
$6,156 USD
View
B+
Retailer 6
-
£4,712 GBP
$6,323 USD
View
B+
Retailer 7
-
£4,918 GBP
$6,599 USD
View
B+
Retailer 8
-
£5,035 GBP
View
B+
Retailer 9
-
£5,044 GBP
View
B
Retailer 10
-
£5,428 GBP
€6,937 EUR
View
Most Expensive
B
Reve Diamonds
382114F27 · Oct 30
£5,447 GBP
$7,310 USD
View
10 more retailers have this diamond
Prices start from £3,976 GBPSave up to £1,471 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
£3,976 GBP