Cushion|Natural|GIA

0.64ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 2536850082

Certificate GIA 2536850082

Diamond specifications and retailer prices

From £295 GBP
$396 USD
As of November 2, 2026
Save £145 GBP (33%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £440 GBP at Jared · As of November 2, 2026
View at Jared

About this 0.64ct natural cushion diamond

This 0.64ct natural cushion sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2536850082. Listed at 8 retailers as of November 2, 2026, with prices from £295 to £440, a £145 spread on the same certified stone. Jared lists it at £440. 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

0.64
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536850082
Dimensions4.99 × 4.64 × 3.14 mm
L/W Ratio1.08
Top View
4.99 mm4.64 mm0.64 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536850082
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.6%

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: Nov 2
Current: £440 GBP|Low: £269 GBP|High: £492 GBP|Avg: £383 GBP|-10.6%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9£277 GBP
Retailer 5£295 GBP
Retailer 3£306 GBP
Retailer 7£355 GBP
Retailer 6£393 GBP
Retailer 2£408 GBP
Retailer 4£425 GBP
Retailer 8£425 GBP
Jared£440 GBP

40 data points across 9 retailers

8 retailers£295 GBP to £440 GBP

B+
Cheapest Retailer
-
£295 GBP
$396 USD
Final sale: no returns
A
Retailer 2
-
£306 GBP
$410 USD
View
B+
Retailer 3
-
£355 GBP
SGD 643 SGD
View
B+
Retailer 4
-
£393 GBP
$527 USD
View
B+
Retailer 5
-
£408 GBP
View
B+
Retailer 6
-
£425 GBP
$570 USD
View
B+
Retailer 7
-
£425 GBP
$570 USD
View
Most Expensive
B+
Jared
159885556 · Nov 2
£440 GBP
$590 USD
View
7 more retailers have this diamond
Prices start from £295 GBPSave up to £145 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
0.64ct Cushion
£295 GBP