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Marquise|Natural|GIA

0.31ct J IF Marquise Natural Diamond

VG • J/IF • GIA 1545059590

Certificate GIA 1545059590

Diamond specifications and retailer prices

From £291 GBP
$390 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: £291 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 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1545059590. 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

0.31
Carat
J
Colour
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545059590
Dimensions6.82 × 3.47 × 2.19 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
6.82 mm3.47 mm0.31 ctJ / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545059590
Side View
Table 62.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 63.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £359 GBP|Low: £186 GBP|High: £420 GBP|Avg: £312 GBP|+0.1%
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Retailer 13
August 5, 2026
Retailer 6£186 GBP
Retailer 2£250 GBP
Retailer 11£253 GBP
Retailer 8£291 GBP
Retailer 5£292 GBP
Retailer 9£298 GBP
Retailer 4£311 GBP
Retailer 12£317 GBP
Retailer 10£332 GBP
Retailer 3£344 GBP
Retailer 1£359 GBP
Retailer 7£376 GBP
Retailer 13£415 GBP

54 data points across 13 retailers

1 retailer

B+
Adiamor
D-71427679 · Nov 1
£291 GBP
$390 USD
View

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+
0.31ct Marquise
£291 GBP