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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6561091209

Certificate GIA 6561091209

Diamond specifications and retailer prices

From £2,111 GBP
$2,828 USD
As of November 1, 2026
Save £1,830 GBP (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,941 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 6561091209. Listed at 14 retailers as of November 1, 2026, with prices from £2,111 to £3,941, a £1,830 spread on the same certified stone. MOH London lists it at £3,941. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561091209
Dimensions5.60 × 5.47 × 3.77 mm
L/W Ratio1.02
Top View
5.60 mm5.47 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561091209
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 68.9%

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: £3,941 GBP|Low: £1,993 GBP|High: £3,989 GBP|Avg: £2,522 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 12£2,111 GBP
Retailer 9£2,112 GBP
Retailer 10£2,148 GBP
Retailer 4£2,152 GBP
Retailer 8£2,153 GBP
Retailer 11£2,175 GBP
Retailer 2£2,299 GBP
Retailer 5£2,462 GBP
Retailer 3£2,517 GBP
Retailer 7£2,758 GBP
Retailer 6£2,896 GBP
MOH London£3,941 GBP

36 data points across 12 retailers

14 retailers£2,111 GBP to £3,941 GBP

B+
Cheapest Retailer
-
£2,111 GBP
$2,828 USD
B+
Retailer 2
-
£2,112 GBP
$2,830 USD
View
B+
Retailer 3
-
£2,148 GBP
$2,878 USD
View
B+
Retailer 4
-
£2,152 GBP
$2,883 USD
View
B+
Retailer 5
-
£2,153 GBP
$2,885 USD
View
B+
Retailer 6
-
£2,175 GBP
$2,914 USD
View
Final sale: no returns
B+
Retailer 7
-
£2,299 GBP
View
B+
Retailer 8
-
£2,444 GBP
SGD 4,425 SGD
View
B+
Retailer 9
-
£2,462 GBP
View
B+
Retailer 10
-
£2,463 GBP
$3,301 USD
View
Retailer 11
-
£2,517 GBP
A$5,189 AUD
View
Price last confirmed 25 days ago
B
Retailer 12
-
£2,758 GBP
€3,520 EUR
View
B
Retailer 13
-
£2,896 GBP
ZAR 62,697 ZAR
View
Most Expensive
B
MOH London
D9960B846 · Nov 1
£3,941 GBP
View
13 more retailers have this diamond
Prices start from £2,111 GBPSave up to £1,830 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
£2,111 GBP