CaratHunter
Plans
Marquise|Natural|GIA

0.40ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1549594390

Certificate GIA 1549594390

Diamond specifications and retailer prices

From $340 USD
₹32,372 INR
As of November 2, 2026
Save $750 USD (69%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,090 USD 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 G 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 1549594390. Listed at 20 retailers as of October 29, 2026, with prices from $340 to $1,090, a $750 spread on the same certified stone. MOH London lists it at $1,090. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1549594390
Dimensions8.10 × 3.63 × 2.24 mm
L/W Ratio2.23
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal
Top View
8.10 mm3.63 mm0.40 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 1549594390
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.8%

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: $1,090 USD|Low: $339 USD|High: $1,176 USD|Avg: $641 USD|-7.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2$340 USD
Retailer 10$397 USD
Retailer 12$490 USD
Retailer 9$540 USD
Retailer 3$541 USD
Retailer 6$585 USD
Retailer 11$600 USD
Retailer 8$643 USD
Retailer 5$708 USD
Retailer 7$728 USD
Retailer 4$757 USD
MOH London$1,090 USD

33 data points across 12 retailers

20 retailers$340 USD to $1,090 USD

A
Cheapest Retailer
-
$340 USD
₹32,372 INR
A
Retailer 2
-
$397 USD
HK$3,100 HKD
View
B+
Retailer 3
-
$490 USD
SGD 662 SGD
View
Retailer 4
-
$495 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$503 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$533 USD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
$540 USD
View
B+
Retailer 8
-
$541 USD
View
Retailer 9
-
$542 USD
View
Price last confirmed 25 days ago
Retailer 10
-
$571 USD
View
Price last confirmed 38 days ago
Retailer 11
-
$581 USD
View
Price last confirmed 31 days ago
B
Retailer 12
-
$585 USD
£461 GBP
View
B+
Retailer 13
-
$600 USD
View
B
Retailer 14
-
$643 USD
£506 GBP
View
B
Retailer 15
-
$708 USD
€674 EUR
View
B
Retailer 16
-
$728 USD
ZAR 11,755 ZAR
View
Retailer 17
-
$757 USD
A$1,164 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
8650FE27F · Oct 29
$1,090 USD
£858 GBP
View
17 more retailers have this diamond
Prices start from $340 USDSave up to $750 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
$340 USD