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Marquise|Natural|GIA

0.40ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 7556591696

Certificate GIA 7556591696

Diamond specifications and retailer prices

From £199 GBP
₹25,450 INR
As of November 1, 2026
Save £469 GBP (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £668 GBP 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7556591696. Listed at 20 retailers as of November 1, 2026, with prices from £199 to £668, a £469 spread on the same certified stone. MOH London lists it at £668. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7556591696
Dimensions8.36 × 3.77 × 2.15 mm
L/W Ratio2.22
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
8.36 mm3.77 mm0.40 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7556591696
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.9%

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: £668 GBP|Low: £199 GBP|High: £676 GBP|Avg: £402 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4£199 GBP
Retailer 10£231 GBP
Retailer 9£274 GBP
Retailer 5£321 GBP
Retailer 3£377 GBP
Retailer 7£384 GBP
Retailer 6£440 GBP
Retailer 8£448 GBP
Retailer 2£585 GBP
MOH London£668 GBP

24 data points across 10 retailers

20 retailers£199 GBP to £668 GBP

A
Cheapest Retailer
-
£199 GBP
₹25,450 INR
A
Retailer 2
-
£231 GBP
$310 USD
View
B+
Retailer 3
-
£267 GBP
$358 USD
View
Final sale: no returns
A
Retailer 4
-
£274 GBP
$367 USD
View
Retailer 5
-
£289 GBP
$387 USD
View
Price last confirmed 25 days ago
Retailer 6
-
£311 GBP
$417 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
£321 GBP
$430 USD
View
Retailer 8
-
£322 GBP
$432 USD
View
Price last confirmed 32 days ago
B
Retailer 9
-
£377 GBP
View
B
Retailer 10
-
£384 GBP
$514 USD
View
B
Retailer 11
-
£387 GBP
$518 USD
View
Retailer 12
-
£390 GBP
$522 USD
View
Price last confirmed 24 days ago
B
Retailer 13
-
£416 GBP
$557 USD
View
B
Retailer 14
-
£440 GBP
€562 EUR
View
B
Retailer 15
-
£448 GBP
$600 USD
View
B
Retailer 16
-
£448 GBP
ZAR 9,705 ZAR
View
Retailer 17
-
£463 GBP
A$955 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
£585 GBP
View
Most Expensive
B
MOH London
D2C09C515 · Nov 1
£668 GBP
View
18 more retailers have this diamond
Prices start from £199 GBPSave up to £469 GBP

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
£199 GBP