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Marquise|Natural|GIA

0.40ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 7558207768

Certificate GIA 7558207768

Diamond specifications and retailer prices

From £273 GBP
MYR 1,490 MYR
As of October 30, 2026
Save £110 GBP (29%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £383 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7558207768. Listed at 5 retailers as of October 30, 2026, with prices from £273 to £383, a £110 spread on the same certified stone. 77 Diamonds lists it at £383. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558207768
Dimensions7.03 × 3.81 × 2.52 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
7.03 mm3.81 mm0.40 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558207768
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.3%

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: Oct 30
Current: £383 GBP|Low: £266 GBP|High: £396 GBP|Avg: £322 GBP|-1.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£273 GBP
Retailer 2£302 GBP
Retailer 3£307 GBP
Retailer 4£328 GBP
77 Diamonds£383 GBP

41 data points across 5 retailers

5 retailers£273 GBP to £383 GBP

B+
Cheapest Retailer
-
£273 GBP
MYR 1,490 MYR
B+
Retailer 2
-
£302 GBP
$405 USD
View
B+
Retailer 3
-
£307 GBP
$411 USD
View
Final sale: no returns
B+
Retailer 4
-
£328 GBP
SGD 593 SGD
View
Most Expensive
B
77 Diamonds
MQCPZZHASXY8 · Nov 2
£383 GBP
View
4 more retailers have this diamond
Prices start from £273 GBPSave up to £110 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.

B+
0.40ct Marquise
£273 GBP