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Marquise|Natural|GIA

0.40ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2504663620

Certificate GIA 2504663620

Diamond specifications and retailer prices

From €297 EUR
₹31,707 INR
As of November 2, 2026
Save €657 EUR (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €953 EUR 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2504663620. Listed at 18 retailers as of October 29, 2026, with prices from €297 to €953, a €657 spread on the same certified stone. MOH London lists it at €953. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2504663620
Dimensions7.04 × 3.89 × 2.59 mm
L/W Ratio1.81
Top View
7.04 mm3.89 mm0.40 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2504663620
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.5%

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: €953 EUR|Low: €296 EUR|High: €1,575 EUR|Avg: €644 EUR|-0.5%
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
November 2, 2026
Retailer 6€297 EUR
Retailer 11€411 EUR
Retailer 10€415 EUR
Retailer 2€442 EUR
Retailer 5€442 EUR
Retailer 12€474 EUR
Retailer 9€512 EUR
Retailer 4€563 EUR
Retailer 8€621 EUR
Retailer 3€637 EUR
Retailer 7€831 EUR
MOH London€953 EUR
Retailer 13€1,575 EUR

28 data points across 13 retailers

18 retailers€297 EUR to €953 EUR

A
Cheapest Retailer
-
€297 EUR
₹31,707 INR
B+
Retailer 2
-
€411 EUR
$461 USD
View
B+
Retailer 3
-
€415 EUR
$465 USD
View
B+
Retailer 4
-
€442 EUR
$496 USD
View
B+
Retailer 5
-
€442 EUR
$496 USD
View
B
Retailer 6
-
€473 EUR
$530 USD
View
B
Retailer 7
-
€474 EUR
$532 USD
View
B
Retailer 8
-
€474 EUR
$532 USD
View
B
Retailer 9
-
€512 EUR
£452 GBP
View
B
Retailer 10
-
€525 EUR
$589 USD
View
B
Retailer 11
-
€528 EUR
$592 USD
View
B
Retailer 12
-
€563 EUR
£497 GBP
View
B
Retailer 13
-
€621 EUR
View
B
Retailer 14
-
€637 EUR
ZAR 11,542 ZAR
View
Retailer 15
-
€658 EUR
A$1,136 AUD
View
Price last confirmed 28 days ago
B
Retailer 16
-
€831 EUR
£734 GBP
View
Most Expensive
B
MOH London
A4E4C7D57 · Oct 29
€953 EUR
£842 GBP
View
16 more retailers have this diamond
Prices start from €297 EURSave up to €657 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.

A
0.40ct Marquise
€297 EUR