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Cushion|Natural|GIA

0.40ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2554184590

Certificate GIA 2554184590

Diamond specifications and retailer prices

From $772 NZD
₹41,413 INR
As of October 31, 2026
Save $1,664 NZD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,436 NZD 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554184590. Listed at 12 retailers as of October 31, 2026, with prices from $772 to $2,436, a $1,664 spread on the same certified stone. MOH London lists it at $2,436. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554184590
Dimensions4.25 × 4.16 × 2.76 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal
Top View
4.25 mm4.16 mm0.40 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554184590
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.3%

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 31
Current: $2,436 NZD|Low: $770 NZD|High: $2,465 NZD|Avg: $1,517 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4$772 NZD
Retailer 7$1,136 NZD
Retailer 3$1,295 NZD
Retailer 6$1,445 NZD
Retailer 2$1,559 NZD
Retailer 8$1,586 NZD
Retailer 5$1,635 NZD
MOH London$2,436 NZD

37 data points across 8 retailers

12 retailers$772 NZD to $2,436 NZD

A
Cheapest Retailer
-
$772 NZD
₹41,413 INR
B+
Retailer 2
-
$1,136 NZD
$640 USD
View
B+
Retailer 3
-
$1,198 NZD
$675 USD
View
B+
Retailer 4
-
$1,217 NZD
$686 USD
View
B+
Retailer 5
-
$1,254 NZD
$707 USD
View
B+
Retailer 6
-
$1,295 NZD
£575 GBP
View
B+
Retailer 7
-
$1,445 NZD
£641 GBP
View
B
Retailer 8
-
$1,460 NZD
$823 USD
View
B+
Retailer 9
-
$1,559 NZD
€837 EUR
View
Retailer 10
-
$1,586 NZD
A$1,375 AUD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
$1,635 NZD
ZAR 14,890 ZAR
View
Most Expensive
B
MOH London
B7196D1BA · Nov 1
$2,436 NZD
£1,081 GBP
View
11 more retailers have this diamond
Prices start from $772 NZDSave up to $1,664 NZD

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
$772 NZD