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Marquise|Natural|GIA

0.40ct I IF Marquise Natural Diamond

GD • I/IF • GIA 3545518325

Certificate GIA 3545518325

Diamond specifications and retailer prices

From £421 GBP
$565 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: £421 GBP at Adiamor
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Adiamor

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 IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3545518325. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545518325
Dimensions7.31 × 3.75 × 2.36 mm
L/W Ratio1.95
Top View
7.31 mm3.75 mm0.40 ctI / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545518325
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 62.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £421 GBP|Low: £307 GBP|High: £1,742 GBP|Avg: £510 GBP|-9.6%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
July 1, 2026
Retailer 6£307 GBP
Adiamor£421 GBP
Retailer 11£459 GBP
Retailer 8£460 GBP
Retailer 4£465 GBP
Retailer 9£484 GBP
Retailer 2£499 GBP
Retailer 10£525 GBP
Retailer 7£529 GBP
Retailer 3£531 GBP
Retailer 5£840 GBP

43 data points across 11 retailers

1 retailer

B+
Adiamor
D-72611076 · Nov 1
£421 GBP
$565 USD
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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
£421 GBP