Cushion|Natural|GIA

0.40ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 1555403296

Certificate GIA 1555403296

Diamond specifications and retailer prices

From $447 USD
SGD 604 SGD
As of October 27, 2026
Save $545 USD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $992 USD at MOH London · As of October 29, 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 G 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 1555403296. Listed at 13 retailers as of October 27, 2026, with prices from $447 to $992, a $545 spread on the same certified stone. MOH London lists it at $992. 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
G
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555403296
Dimensions4.89 × 3.68 × 2.55 mm
L/W Ratio1.33
Culet sizeNone
Key to symbols
Cloud, Cavity
Top View
4.89 mm3.68 mm0.40 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555403296
Side View
Table 65.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.4%

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: Oct 27
Current: $992 USD|Low: $460 USD|High: $998 USD|Avg: $668 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9$460 USD
Retailer 3$490 USD
Retailer 4$525 USD
Retailer 7$585 USD
Retailer 5$662 USD
Retailer 8$684 USD
Retailer 2$699 USD
Retailer 6$867 USD
MOH London$992 USD

38 data points across 9 retailers

13 retailers$447 USD to $992 USD

A
Cheapest Retailer
-
$447 USD
SGD 604 SGD
A
Retailer 2
-
$460 USD
View
B+
Retailer 3
-
$490 USD
View
B+
Retailer 4
-
$493 USD
View
B+
Retailer 5
-
$525 USD
£413 GBP
View
B+
Retailer 6
-
$558 USD
View
B+
Retailer 7
-
$567 USD
View
B+
Retailer 8
-
$585 USD
£461 GBP
View
B+
Retailer 9
-
$662 USD
ZAR 10,695 ZAR
View
Retailer 10
-
$684 USD
A$1,052 AUD
View
Price last confirmed 28 days ago
B
Retailer 11
-
$699 USD
€666 EUR
View
B
Retailer 12
-
$867 USD
£682 GBP
View
Most Expensive
B
MOH London
7EBB8F365 · Oct 29
$992 USD
£781 GBP
View
12 more retailers have this diamond
Prices start from $447 USDSave up to $545 USD

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
$447 USD