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Cushion|Natural|GIA

0.40ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 2547089735

Certificate GIA 2547089735

Diamond specifications and retailer prices

From £226 GBP
₹28,859 INR
As of November 2, 2026
Save £499 GBP (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £725 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded I 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 2547089735. Listed at 11 retailers as of November 1, 2026, with prices from £226 to £725, a £499 spread on the same certified stone. MOH London lists it at £725. 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

0.40
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2547089735
Dimensions4.15 × 4.12 × 2.80 mm
L/W Ratio1.01
Top View
4.15 mm4.12 mm0.40 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2547089735
Side View
Table 64.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.0%

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: £725 GBP|Low: £226 GBP|High: £735 GBP|Avg: £437 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£226 GBP
Retailer 7£321 GBP
Retailer 8£338 GBP
Retailer 4£389 GBP
Retailer 6£470 GBP
Retailer 3£478 GBP
Retailer 5£487 GBP
Retailer 9£503 GBP
MOH London£725 GBP

36 data points across 9 retailers

11 retailers£226 GBP to £725 GBP

A
Cheapest Retailer
-
£226 GBP
₹28,859 INR
B+
Retailer 2
-
£321 GBP
$430 USD
View
B+
Retailer 3
-
£338 GBP
$453 USD
View
B+
Retailer 4
-
£363 GBP
$486 USD
View
B+
Retailer 5
-
£389 GBP
View
B
Retailer 6
-
£418 GBP
$560 USD
View
B
Retailer 7
-
£470 GBP
$630 USD
View
B
Retailer 8
-
£478 GBP
€610 EUR
View
B
Retailer 9
-
£487 GBP
ZAR 10,543 ZAR
View
Retailer 10
-
£503 GBP
A$1,037 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
ED8B9F3DF · Nov 1
£725 GBP
View
10 more retailers have this diamond
Prices start from £226 GBPSave up to £499 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
0.40ct Cushion
£226 GBP