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Cushion|Natural|GIA

0.63ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 7391850894

Certificate GIA 7391850894

Diamond specifications and retailer prices

From £559 GBP
As of November 4, 2026
Save £665 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,224 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.63ct natural cushion diamond

This 0.63ct natural cushion sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7391850894. Listed at 20 retailers as of November 4, 2026, with prices from £559 to £1,224, a £665 spread on the same certified stone. MOH London lists it at £1,224. 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

0.63
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7391850894
Dimensions5.31 × 4.87 × 3.14 mm
L/W Ratio1.09
Top View
5.31 mm4.87 mm0.63 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7391850894
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.4%

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 4
Current: £1,224 GBP|Low: £466 GBP|High: £1,240 GBP|Avg: £784 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10£560 GBP
Retailer 8£564 GBP
Retailer 12£606 GBP
Retailer 4£627 GBP
Retailer 3£691 GBP
Retailer 9£732 GBP
Retailer 5£774 GBP
Retailer 2£857 GBP
Retailer 7£865 GBP
Retailer 6£999 GBP
Retailer 11£1,006 GBP
MOH London£1,224 GBP

44 data points across 12 retailers

20 retailers£559 GBP to £1,224 GBP

B+
Cheapest Retailer
-
£559 GBP
B+
Retailer 2
-
£560 GBP
View
Final sale: no returns
B+
Retailer 3
-
£564 GBP
View
Retailer 4
-
£606 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£609 GBP
View
B
Retailer 6
-
£627 GBP
View
B
Retailer 7
-
£686 GBP
View
B
Retailer 8
-
£691 GBP
View
B
Retailer 9
-
£732 GBP
View
B
Retailer 10
-
£747 GBP
View
B
Retailer 11
-
£747 GBP
View
B
Retailer 12
-
£749 GBP
View
B
Retailer 13
-
£770 GBP
View
B
Retailer 14
-
£774 GBP
View
B
Retailer 15
-
£857 GBP
View
B
Retailer 16
-
£865 GBP
View
B
Retailer 17
-
£999 GBP
View
Retailer 18
-
£1,006 GBP
View
Price last confirmed 34 days ago
C
Retailer 19
-
£1,079 GBP
View
Most Expensive
B
MOH London
B47B47CE7 · Nov 4
£1,224 GBP
View
19 more retailers have this diamond
Prices start from £559 GBPSave up to £665 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+
0.63ct Cushion
£559 GBP