Marquise|Natural|GIA

0.40ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6562720666

Certificate GIA 6562720666

Diamond specifications and retailer prices

From €417 EUR
$468 USD
As of November 1, 2026
Save €602 EUR (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,019 EUR 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 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 6562720666. Listed at 15 retailers as of November 1, 2026, with prices from €417 to €1,019, a €602 spread on the same certified stone. MOH London lists it at €1,019. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562720666
Dimensions7.61 × 3.86 × 2.36 mm
L/W Ratio1.97
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.61 mm3.86 mm0.40 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562720666
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,019 EUR|Low: €417 EUR|High: €1,690 EUR|Avg: €650 EUR
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
November 2, 2026
Retailer 4€417 EUR
Retailer 7€441 EUR
Retailer 2€475 EUR
Retailer 6€475 EUR
Retailer 8€509 EUR
Retailer 13€551 EUR
Retailer 11€551 EUR
Retailer 10€597 EUR
Retailer 3€604 EUR
Retailer 12€620 EUR
Retailer 5€620 EUR
Retailer 14€684 EUR
Retailer 9€893 EUR
MOH London€1,019 EUR
Retailer 15€1,690 EUR

6 data points across 15 retailers

15 retailers€417 EUR to €1,019 EUR

B+
Cheapest Retailer
-
€417 EUR
$468 USD
B+
Retailer 2
-
€441 EUR
$495 USD
View
B+
Retailer 3
-
€475 EUR
$533 USD
View
B+
Retailer 4
-
€475 EUR
$533 USD
View
B
Retailer 5
-
€509 EUR
$571 USD
View
B
Retailer 6
-
€551 EUR
$618 USD
View
B+
Retailer 7
-
€551 EUR
£487 GBP
View
B
Retailer 8
-
€597 EUR
View
B
Retailer 9
-
€604 EUR
£534 GBP
View
B
Retailer 10
-
€620 EUR
$695 USD
View
B
Retailer 11
-
€620 EUR
$696 USD
View
B
Retailer 12
-
€684 EUR
ZAR 12,391 ZAR
View
B
Retailer 13
-
€893 EUR
£788 GBP
View
Most Expensive
B
MOH London
77A188457 · Nov 2
€1,019 EUR
£900 GBP
View
13 more retailers have this diamond
Prices start from €417 EURSave up to €602 EUR

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.

B+
0.40ct Marquise
€417 EUR