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Marquise|Natural|GIA

0.40ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2554950670

Certificate GIA 2554950670

Diamond specifications and retailer prices

From $539 NZD
₹28,859 INR
As of November 2, 2026
Save $1,172 NZD (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,711 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise 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 2554950670. Listed at 9 retailers as of November 2, 2026, with prices from $539 to $1,711, a $1,172 spread on the same certified stone. MOH London lists it at $1,711. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554950670
Dimensions7.14 × 3.85 × 2.41 mm
L/W Ratio1.85
Girdle conditionThick to Very Thick
Key to symbols
Crystal
Top View
7.14 mm3.85 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554950670
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.5%

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: $1,711 NZD|Low: $537 NZD|High: $1,853 NZD|Avg: $1,002 NZD|-6.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$539 NZD
Retailer 5$637 NZD
Retailer 6$783 NZD
Retailer 4$802 NZD
Retailer 3$1,200 NZD
MOH London$1,711 NZD

43 data points across 6 retailers

9 retailers$539 NZD to $1,711 NZD

A
Cheapest Retailer
-
$539 NZD
₹28,859 INR
A
Retailer 2
-
$637 NZD
HK$2,800 HKD
View
B+
Retailer 3
-
$783 NZD
SGD 595 SGD
View
B+
Retailer 4
-
$802 NZD
$451 USD
View
Retailer 5
-
$853 NZD
$480 USD
View
Price last confirmed 32 days ago
Retailer 6
-
$857 NZD
$482 USD
View
Price last confirmed 26 days ago
B
Retailer 7
-
$1,200 NZD
£532 GBP
View
Most Expensive
B
MOH London
2994AF184 · Nov 2
$1,711 NZD
£758 GBP
View
7 more retailers have this diamond
Prices start from $539 NZDSave up to $1,172 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 Marquise
$539 NZD