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Marquise|Natural|GIA

0.31ct I IF Marquise Natural Diamond

EX • I/IF • GIA 6565450628

Certificate GIA 6565450628

Diamond specifications and retailer prices

From £276 GBP
$370 USD
As of November 2, 2026
Save £238 GBP (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £693 GBP at Flawless Fine Jewelry · As of October 21, 2026
View at Flawless Fine Jewelry

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565450628. Listed at 11 retailers as of November 2, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.31
Carat
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.75°
Pavilion angle39.82°
OriginNatural
Grading LabGIA
CertificateGIA 6565450628
Dimensions7.42 × 3.49 × 2.08 mm
L/W Ratio2.13
Culet sizeNone
Top View
7.42 mm3.49 mm0.31 ctI / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565450628
Side View
Table 60.0%Crown 34.75°Girdle: STK-VTKPavilion 39.82°Culet: NoneDepth 59.5%

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: £693 GBP|Low: £276 GBP|High: £693 GBP|Avg: £384 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10£276 GBP
Retailer 3£297 GBP
Retailer 5£306 GBP
Retailer 6£324 GBP
Retailer 8£338 GBP
Retailer 2£362 GBP
Retailer 11£386 GBP
Retailer 7£415 GBP
Retailer 9£442 GBP
Retailer 4£513 GBP
Flawless Fine Jewelry£693 GBP

33 data points across 11 retailers

11 retailers£276 GBP to £513 GBP

A
Cheapest Retailer
-
£276 GBP
$370 USD
A
Retailer 2
-
£297 GBP
SGD 539 SGD
View
A
Retailer 3
-
£306 GBP
$410 USD
View
A
Retailer 4
-
£324 GBP
SGD 587 SGD
View
B+
Retailer 5
-
£338 GBP
$454 USD
View
B+
Retailer 6
-
£362 GBP
View
B+
Retailer 7
-
£386 GBP
$518 USD
View
B
Retailer 8
-
£415 GBP
$557 USD
View
B+
Retailer 9
-
£442 GBP
$593 USD
View
B
Retailer 10
-
£513 GBP
€656 EUR
View
Most Expensive
Flawless Fine Jewelry
F5EC81BA6 · Oct 21
£693 GBP
View
Price last confirmed 11 days ago
10 more retailers have this diamond
Prices start from £276 GBPSave up to £238 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
0.31ct Marquise
£276 GBP