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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2231437679

Certificate GIA 2231437679

Diamond specifications and retailer prices

From £2,234 GBP
$2,993 USD
As of November 1, 2026
Save £2,141 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,374 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct 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 2231437679. Listed at 15 retailers as of November 1, 2026, with prices from £2,234 to £4,374, a £2,141 spread on the same certified stone. MOH London lists it at £4,374. 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231437679
Dimensions8.09 × 5.21 × 3.31 mm
L/W Ratio1.55
Cert comments
NO BGM-Additional clouds are not shown.
Key to symbols
Cloud, Indented Natural
Top View
8.09 mm5.21 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231437679
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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 1
Current: £4,374 GBP|Low: £1,961 GBP|High: £4,427 GBP|Avg: £2,687 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8£1,968 GBP
Retailer 4£2,234 GBP
Retailer 12£2,322 GBP
Retailer 9£2,414 GBP
Retailer 3£2,519 GBP
Retailer 5£2,552 GBP
Retailer 10£2,616 GBP
Retailer 2£2,734 GBP
Retailer 11£2,805 GBP
Retailer 7£3,062 GBP
Retailer 6£3,215 GBP
MOH London£4,374 GBP

34 data points across 12 retailers

15 retailers£2,234 GBP to £4,374 GBP

Retailer 1
-
£1,968 GBP
₹251,089 INR
Price last confirmed 9 days ago
Retailer 2
-
£2,146 GBP
$2,875 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
£2,234 GBP
$2,993 USD
View
B+
Retailer 4
-
£2,322 GBP
$3,111 USD
View
B+
Retailer 5
-
£2,414 GBP
$3,235 USD
View
Final sale: no returns
B+
Retailer 6
-
£2,519 GBP
$3,375 USD
View
B+
Retailer 7
-
£2,552 GBP
View
Retailer 8
-
£2,616 GBP
$3,505 USD
View
Price last confirmed 25 days ago
B
Retailer 9
-
£2,724 GBP
$3,650 USD
View
B+
Retailer 10
-
£2,734 GBP
View
Retailer 11
-
£2,805 GBP
A$5,782 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
£2,865 GBP
$3,839 USD
View
B
Retailer 13
-
£3,062 GBP
€3,908 EUR
View
B
Retailer 14
-
£3,215 GBP
ZAR 69,599 ZAR
View
Most Expensive
B
MOH London
83D39CF69 · Nov 1
£4,374 GBP
View
14 more retailers have this diamond
Prices start from £2,234 GBPSave up to £2,141 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+
1.00ct Cushion
£2,234 GBP