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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6515741822

Certificate GIA 6515741822

Diamond specifications and retailer prices

From £1,049 GBP
$1,406 USD
As of October 31, 2026
Save £1,175 GBP (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,224 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 6515741822. Listed at 14 retailers as of October 31, 2026, with prices from £1,049 to £2,224, a £1,175 spread on the same certified stone. Do Amore Diamonds lists it at £2,224. 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 6515741822
Dimensions5.75 × 5.54 × 3.71 mm
L/W Ratio1.04
Top View
5.75 mm5.54 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515741822
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.9%

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: Oct 31
Current: £2,224 GBP|Low: £1,049 GBP|High: £2,597 GBP|Avg: £1,389 GBP|-14.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 14£1,049 GBP
Retailer 6£1,107 GBP
Retailer 10£1,157 GBP
Retailer 3£1,166 GBP
Retailer 7£1,242 GBP
Retailer 12£1,276 GBP
Retailer 2£1,280 GBP
Retailer 11£1,321 GBP
Retailer 13£1,331 GBP
Retailer 4£1,358 GBP
Retailer 8£1,358 GBP
Retailer 9£1,403 GBP
Retailer 5£1,435 GBP
Do Amore Diamonds£2,224 GBP

39 data points across 14 retailers

14 retailers£1,049 GBP to £2,224 GBP

A
Cheapest Retailer
-
£1,049 GBP
$1,406 USD
Final sale: no returns
Retailer 2
-
£1,107 GBP
$1,483 USD
View
Price last confirmed 89 days ago
A
Retailer 3
-
£1,157 GBP
$1,550 USD
View
A
Retailer 4
-
£1,166 GBP
MYR 6,365 MYR
View
A
Retailer 5
-
£1,242 GBP
$1,664 USD
View
A
Retailer 6
-
£1,276 GBP
$1,710 USD
View
A
Retailer 7
-
£1,280 GBP
View
A
Retailer 8
-
£1,321 GBP
$1,770 USD
View
A
Retailer 9
-
£1,331 GBP
SGD 2,410 SGD
View
A
Retailer 10
-
£1,358 GBP
$1,820 USD
View
A
Retailer 11
-
£1,358 GBP
$1,820 USD
View
A
Retailer 12
-
£1,403 GBP
$1,880 USD
View
A
Retailer 13
-
£1,435 GBP
A$2,958 AUD
View
Most Expensive
B+
Do Amore Diamonds
12-100760979997 · Oct 31
£2,224 GBP
$2,980 USD
View
13 more retailers have this diamond
Prices start from £1,049 GBPSave up to £1,175 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
1.00ct Cushion
£1,049 GBP