CaratHunter
Plans
Marquise|Natural|GIA

0.31ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2567665932

Certificate GIA 2567665932

Diamond specifications and retailer prices

From £127 GBP
₹16,234 INR
As of November 2, 2026
Save £277 GBP (69%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £404 GBP at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2567665932. Listed at 3 retailers as of November 2, 2026, with prices from £127 to £404, a £277 spread on the same certified stone. 77 Diamonds lists it at £404. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2567665932
Dimensions6.78 × 3.32 × 2.30 mm
L/W Ratio2.04
Top View
6.78 mm3.32 mm0.31 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2567665932
Side View
Table 61.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 69.4%

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: £404 GBP|Low: £127 GBP|High: £404 GBP|Avg: £245 GBP|+0.8%
77 Diamonds
Retailer 2
November 3, 2026
Retailer 2£127 GBP
77 Diamonds£404 GBP

4 data points across 2 retailers

3 retailers£127 GBP to £404 GBP

A
Cheapest Retailer
-
£127 GBP
₹16,234 INR
B+
Retailer 2
-
£222 GBP
A$457 AUD
View
Most Expensive
C
77 Diamonds
MQCPSVF4JC4J · Nov 3
£404 GBP
View
2 more retailers have this diamond
Prices start from £127 GBPSave up to £277 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
£127 GBP