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Cushion|Natural|GIA

0.80ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 3425030573

Certificate GIA 3425030573

Diamond specifications and retailer prices

From £848 GBP
As of November 4, 2026
Save £1,012 GBP (54%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,860 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-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 3425030573. Listed at 5 retailers as of November 2, 2026, with prices from £848 to £1,860, a £1,012 spread on the same certified stone. MOH London lists it at £1,860. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3425030573
Dimensions5.61 × 5.24 × 3.63 mm
L/W Ratio1.07
Top View
5.61 mm5.24 mm0.80 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 3425030573
Side View
Table 73.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.3%

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: £1,860 GBP|Low: £848 GBP|High: £1,882 GBP|Avg: £1,315 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£848 GBP
Retailer 3£1,113 GBP
Retailer 5£1,325 GBP
Retailer 2£1,408 GBP
MOH London£1,860 GBP

45 data points across 5 retailers

5 retailers£848 GBP to £1,860 GBP

B+
Cheapest Retailer
-
£848 GBP
B
Retailer 2
-
£1,113 GBP
View
Retailer 3
-
£1,325 GBP
View
Price last confirmed 33 days ago
B
Retailer 4
-
£1,408 GBP
View
Most Expensive
C
MOH London
5A71E4A2F · Nov 2
£1,860 GBP
View
4 more retailers have this diamond
Prices start from £848 GBPSave up to £1,012 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
£848 GBP