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Cushion|Natural|GIA

0.81ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 2151576608

Certificate GIA 2151576608

Diamond specifications and retailer prices

From £1,458 GBP
$1,954 USD
As of October 30, 2026
Save £475 GBP (25%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,933 GBP at Jared · As of October 30, 2026
View at Jared

About this 0.81ct natural cushion diamond

This 0.81ct natural cushion sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2151576608. Listed at 8 retailers as of October 30, 2026, with prices from £1,458 to £1,933, a £475 spread on the same certified stone. Jared lists it at £1,933. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.81
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2151576608
Dimensions5.40 × 5.33 × 3.57 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.40 mm5.33 mm0.81 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2151576608
Side View
Table 67.0%CrownGirdle: VTN-ETKPavilionCulet: NoneDepth 67.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,933 GBP|Low: £1,458 GBP|High: £2,565 GBP|Avg: £1,803 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 21, 2026
Retailer 5£1,458 GBP
Retailer 4£1,467 GBP
Retailer 6£1,568 GBP
Retailer 2£1,722 GBP
Retailer 3£1,769 GBP
Retailer 7£1,866 GBP
Retailer 8£1,866 GBP
Jared£1,933 GBP
Retailer 9£2,565 GBP

3 data points across 9 retailers

8 retailers£1,458 GBP to £1,933 GBP

B
Cheapest Retailer
-
£1,458 GBP
$1,954 USD
B
Retailer 2
-
£1,467 GBP
$1,965 USD
View
B
Retailer 3
-
£1,568 GBP
$2,101 USD
View
B
Retailer 4
-
£1,722 GBP
$2,307 USD
View
B
Retailer 5
-
£1,769 GBP
$2,370 USD
View
B
Retailer 6
-
£1,866 GBP
$2,500 USD
View
B
Retailer 7
-
£1,866 GBP
$2,500 USD
View
Most Expensive
B
Jared
136112977 · Oct 30
£1,933 GBP
$2,590 USD
View
7 more retailers have this diamond
Prices start from £1,458 GBPSave up to £475 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
0.81ct Cushion
£1,458 GBP