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Marquise|Natural|GIA

0.40ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1568230929

Certificate GIA 1568230929

Diamond specifications and retailer prices

From $341 USD
₹32,477 INR
As of November 1, 2026
Save $707 USD (67%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,048 USD at MOH London · As of November 1, 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 1568230929. Listed at 19 retailers as of November 1, 2026, with prices from $341 to $1,048, a $707 spread on the same certified stone. MOH London lists it at $1,048. 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
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle37.4°
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 1568230929
Dimensions7.28 × 3.86 × 2.39 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizeNone
Top View
7.28 mm3.86 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 1568230929
Side View
Table 58.0%Crown 37.4°Girdle: STK-VTKPavilion 38°Culet: NoneDepth 61.9%

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: $1,048 USD|Low: $341 USD|High: $1,808 USD|Avg: $637 USD|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 2$341 USD
Retailer 9$415 USD
Retailer 17$419 USD
Retailer 10$454 USD
Retailer 3$480 USD
Retailer 5$490 USD
Retailer 8$490 USD
Retailer 7$491 USD
Retailer 13$524 USD
Retailer 11$565 USD
Retailer 14$578 USD
Retailer 12$605 USD
Retailer 6$660 USD
Retailer 4$687 USD
Retailer 16$704 USD
MOH London$1,048 USD
Retailer 15$1,740 USD

22 data points across 17 retailers

19 retailers$341 USD to $1,048 USD

A
Cheapest Retailer
-
$341 USD
₹32,477 INR
B+
Retailer 2
-
$397 USD
HK$3,100 HKD
View
B+
Retailer 3
-
$415 USD
View
B+
Retailer 4
-
$419 USD
View
Final sale: no returns
B+
Retailer 5
-
$454 USD
View
B+
Retailer 6
-
$480 USD
View
B+
Retailer 7
-
$490 USD
View
B
Retailer 8
-
$490 USD
View
B
Retailer 9
-
$491 USD
SGD 664 SGD
View
B
Retailer 10
-
$524 USD
View
B
Retailer 11
-
$565 USD
£445 GBP
View
B
Retailer 12
-
$578 USD
View
B
Retailer 13
-
$605 USD
View
B
Retailer 14
-
$660 USD
View
B
Retailer 15
-
$687 USD
€654 EUR
View
B
Retailer 16
-
$704 USD
ZAR 11,370 ZAR
View
Retailer 17
-
$760 USD
A$1,169 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
AB0C091A3 · Nov 1
$1,048 USD
£825 GBP
View
17 more retailers have this diamond
Prices start from $341 USDSave up to $707 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 Marquise
$341 USD