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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 $424 CAD
₹28,875 INR
As of October 31, 2026
Save $930 CAD (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,354 CAD at MOH London · As of October 29, 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 October 29, 2026, with prices from $424 to $1,354, a $930 spread on the same certified stone. MOH London lists it at $1,354. 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
Color
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: Oct 31
Current: $1,354 CAD|Low: $422 CAD|High: $1,457 CAD|Avg: $790 CAD|-5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 2$424 CAD
Retailer 5$501 CAD
Retailer 6$615 CAD
Retailer 4$630 CAD
Retailer 3$936 CAD
MOH London$1,354 CAD

44 data points across 6 retailers

9 retailers$424 CAD to $1,354 CAD

A
Cheapest Retailer
-
$424 CAD
₹28,875 INR
A
Retailer 2
-
$501 CAD
HK$2,800 HKD
View
B+
Retailer 3
-
$615 CAD
SGD 595 SGD
View
B+
Retailer 4
-
$630 CAD
$451 USD
View
Retailer 5
-
$671 CAD
$480 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$673 CAD
$482 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$936 CAD
£527 GBP
View
Most Expensive
B
MOH London
2994AF184 · Oct 29
$1,354 CAD
£763 GBP
View
7 more retailers have this diamond
Prices start from $424 CADSave up to $930 CAD

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
$424 CAD