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Cushion|Natural|GIA

0.81ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 1239277090

Certificate GIA 1239277090

Diamond specifications and retailer prices

From £1,576 GBP
$2,099 USD
As of October 28, 2026
Save £1,034 GBP (40%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,610 GBP at 77 Diamonds · As of October 29, 2026
View at 77 Diamonds

About this 0.81ct natural cushion diamond

This 0.81ct natural cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1239277090. Listed at 5 retailers as of October 28, 2026, with prices from £1,576 to £2,610, a £1,034 spread on the same certified stone. 77 Diamonds lists it at £2,610. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1239277090
Dimensions5.47 × 5.25 × 3.66 mm
L/W Ratio1.04
Top View
5.47 mm5.25 mm0.81 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1239277090
Side View
Table 60.0%CrownGirdle: Sli. ThickPavilionCulet: 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: Oct 28
Current: £2,610 GBP|Low: £1,576 GBP|High: £2,613 GBP|Avg: £1,955 GBP|+2.4%
77 Diamonds
Retailer 2
Retailer 3
October 29, 2026
Retailer 3£1,576 GBP
Retailer 2£1,703 GBP
77 Diamonds£2,610 GBP

38 data points across 3 retailers

5 retailers£1,576 GBP to £2,610 GBP

B+
Cheapest Retailer
-
£1,576 GBP
$2,099 USD
B
Retailer 2
-
£1,703 GBP
$2,268 USD
View
B
Retailer 3
-
£1,710 GBP
$2,277 USD
View
B
Retailer 4
-
£1,846 GBP
$2,458 USD
View
Most Expensive
B
77 Diamonds
CUSZ6SK8BBZV · Oct 29
£2,610 GBP
View
4 more retailers have this diamond
Prices start from £1,576 GBPSave up to £1,034 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
£1,576 GBP