CaratHunter
Plans
Cushion|Natural|GIA

0.40ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6555183033

Certificate GIA 6555183033

Diamond specifications and retailer prices

From $388 SGD
₹28,869 INR
As of November 1, 2026
Save $855 SGD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,242 SGD 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555183033. Listed at 10 retailers as of November 1, 2026, with prices from $388 to $1,242, a $855 spread on the same certified stone. MOH London lists it at $1,242. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6555183033
Dimensions4.14 × 4.12 × 2.84 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.14 mm4.12 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6555183033
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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 1
Current: $1,242 SGD|Low: $387 SGD|High: $1,258 SGD|Avg: $789 SGD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2$388 SGD
Retailer 6$579 SGD
Retailer 3$661 SGD
Retailer 4$821 SGD
Retailer 5$834 SGD
Retailer 7$862 SGD
MOH London$1,242 SGD

38 data points across 7 retailers

10 retailers$388 SGD to $1,242 SGD

A
Cheapest Retailer
-
$388 SGD
₹28,869 INR
B+
Retailer 2
-
$579 SGD
$453 USD
View
B+
Retailer 3
-
$620 SGD
$485 USD
View
B+
Retailer 4
-
$621 SGD
$486 USD
View
B+
Retailer 5
-
$661 SGD
£407 GBP
View
B
Retailer 6
-
$716 SGD
$560 USD
View
B
Retailer 7
-
$821 SGD
€612 EUR
View
B+
Retailer 8
-
$834 SGD
ZAR 10,543 ZAR
View
Retailer 9
-
$862 SGD
A$1,037 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
6D4E087F6 · Nov 1
$1,242 SGD
£765 GBP
View
9 more retailers have this diamond
Prices start from $388 SGDSave up to $855 SGD

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
$388 SGD