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Cushion|Natural|GIA

0.80ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 2151581034

Certificate GIA 2151581034

Diamond specifications and retailer prices

From £1,135 GBP
$1,523 USD
As of November 1, 2026
Save £804 GBP (41%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,939 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2151581034. Listed at 10 retailers as of November 1, 2026, with prices from £1,135 to £1,939, a £804 spread on the same certified stone. 77 Diamonds lists it at £1,939. 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

0.80
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2151581034
Dimensions5.47 × 5.13 × 3.51 mm
L/W Ratio1.07
Culet sizeNone
Top View
5.47 mm5.13 mm0.80 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2151581034
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.4%

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: £1,939 GBP|Low: £1,119 GBP|High: £1,939 GBP|Avg: £1,382 GBP|+2.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8£1,119 GBP
Retailer 9£1,135 GBP
Retailer 2£1,244 GBP
Retailer 6£1,256 GBP
Retailer 4£1,260 GBP
Retailer 7£1,326 GBP
Retailer 3£1,510 GBP
Retailer 5£1,694 GBP
77 Diamonds£1,939 GBP

34 data points across 9 retailers

10 retailers£1,135 GBP to £1,939 GBP

B+
Cheapest Retailer
-
£1,135 GBP
$1,523 USD
B+
Retailer 2
-
£1,256 GBP
$1,685 USD
View
B+
Retailer 3
-
£1,260 GBP
$1,691 USD
View
B+
Retailer 4
-
£1,326 GBP
$1,779 USD
View
B+
Retailer 5
-
£1,510 GBP
$2,026 USD
View
B
Retailer 6
-
£1,602 GBP
$2,150 USD
View
B
Retailer 7
-
£1,602 GBP
$2,150 USD
View
B
Retailer 8
-
£1,654 GBP
$2,220 USD
View
B
Retailer 9
-
£1,694 GBP
A$3,498 AUD
View
Most Expensive
B
77 Diamonds
CUSZ3T62TBEK · Nov 2
£1,939 GBP
View
9 more retailers have this diamond
Prices start from £1,135 GBPSave up to £804 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+
0.80ct Cushion
£1,135 GBP