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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2231437647

Certificate GIA 2231437647

Diamond specifications and retailer prices

From £2,254 GBP
$3,020 USD
As of November 1, 2026
Save £2,120 GBP (48%) vs most expensive(unlock to see where)
14 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 2231437647. Listed at 14 retailers as of November 1, 2026, with prices from £2,254 to £4,374, a £2,120 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231437647
Dimensions7.84 × 5.12 × 3.57 mm
L/W Ratio1.53
Cert comments
NO BGM
Key to symbols
Feather, Cavity, Cloud
Top View
7.84 mm5.12 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231437647
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.7%

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: £2,706 GBP|-1.2%
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 1, 2026
Retailer 8£1,961 GBP
Retailer 4£2,254 GBP
Retailer 12£2,322 GBP
Retailer 10£2,414 GBP
Retailer 3£2,519 GBP
Retailer 2£2,552 GBP
Retailer 9£2,616 GBP
Retailer 5£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

14 retailers£2,254 GBP to £4,374 GBP

Retailer 1
-
£1,961 GBP
₹250,302 INR
Price last confirmed 11 days ago
Retailer 2
-
£2,146 GBP
$2,875 USD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
£2,254 GBP
$3,020 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 20 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 28 days ago
B
Retailer 12
-
£3,062 GBP
€3,908 EUR
View
B
Retailer 13
-
£3,215 GBP
ZAR 69,599 ZAR
View
Most Expensive
B
MOH London
47C1EB56B · Nov 1
£4,374 GBP
View
13 more retailers have this diamond
Prices start from £2,254 GBPSave up to £2,120 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
£2,254 GBP