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Cushion|Natural|GIA

1.02ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2377885959

Certificate GIA 2377885959

Diamond specifications and retailer prices

From £2,241 GBP
$3,003 USD
As of October 28, 2026
Save £980 GBP (30%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,221 GBP at Yorxs · As of October 31, 2026
View at Yorxs

About this 1.02ct natural cushion diamond

This 1.02ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2377885959. Listed at 17 retailers as of October 28, 2026, with prices from £2,241 to £3,221, a £980 spread on the same certified stone. Yorxs lists it at £3,221. 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

1.02
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2377885959
Dimensions5.69 × 5.66 × 3.72 mm
L/W Ratio1.01
Top View
5.69 mm5.66 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2377885959
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.8%

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: Oct 28
Current: £2,850 GBP|Low: £2,223 GBP|High: £3,230 GBP|Avg: £2,622 GBP|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Yorxs
October 31, 2026
Retailer 7£2,223 GBP
Retailer 6£2,241 GBP
Retailer 3£2,274 GBP
Retailer 2£2,490 GBP
Retailer 8£2,526 GBP
Retailer 5£2,695 GBP
Retailer 4£2,774 GBP
Retailer 1£2,850 GBP
Retailer 9£2,941 GBP
Yorxs£3,221 GBP

40 data points across 10 retailers

17 retailers£2,241 GBP to £3,221 GBP

B+
Cheapest Retailer
-
£2,241 GBP
$3,003 USD
B+
Retailer 2
-
£2,274 GBP
$3,047 USD
View
B+
Retailer 3
-
£2,298 GBP
$3,079 USD
View
B+
Retailer 4
-
£2,395 GBP
$3,209 USD
View
B+
Retailer 5
-
£2,490 GBP
SGD 4,508 SGD
View
B+
Retailer 6
-
£2,500 GBP
$3,350 USD
View
B+
Retailer 7
-
£2,524 GBP
CA$4,697 CAD
View
B+
Retailer 8
-
£2,526 GBP
$3,384 USD
View
B
Retailer 9
-
£2,695 GBP
$3,611 USD
View
B
Retailer 10
-
£2,774 GBP
A$5,718 AUD
View
B
Retailer 11
-
£2,850 GBP
View
B
Retailer 12
-
£2,851 GBP
$3,820 USD
View
B
Retailer 13
-
£2,851 GBP
$3,820 USD
View
B
Retailer 14
-
£2,889 GBP
$3,871 USD
View
B
Retailer 15
-
£2,941 GBP
$3,940 USD
View
B
Retailer 16
-
£3,145 GBP
$4,214 USD
View
Most Expensive
B
Yorxs
518485640 · Oct 31
£3,221 GBP
€4,110 EUR
View
16 more retailers have this diamond
Prices start from £2,241 GBPSave up to £980 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+
1.02ct Cushion
£2,241 GBP