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Round|Natural|GIA

0.31ct J I1 Round Natural Diamond

EX • J/I1 • GIA 1559255202

Certificate GIA 1559255202

Diamond specifications and retailer prices

From £86 GBP
₹11,012 INR
As of November 2, 2026
Save £188 GBP (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £274 GBP at Yorxs · As of November 1, 2026
View at Yorxs

About this 0.31ct natural round diamond

This 0.31ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1559255202. Listed at 5 retailers as of November 1, 2026, with prices from £86 to £274, a £188 spread on the same certified stone. Yorxs lists it at £274. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.31
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559255202
Dimensions4.35 × 4.38 × 2.67 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
4.35 mm4.38 mm0.31 ctJ / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559255202
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.1%

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: £86 GBP|Low: £77 GBP|High: £275 GBP|Avg: £177 GBP|-5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 2, 2026
Retailer 1£86 GBP
Retailer 4£114 GBP
Retailer 2£163 GBP
Retailer 3£268 GBP
Yorxs£274 GBP

40 data points across 5 retailers

5 retailers£86 GBP to £274 GBP

A
Cheapest Retailer
-
£86 GBP
₹11,012 INR
B+
Retailer 2
-
£114 GBP
HK$1,200 HKD
View
B+
Retailer 3
-
£163 GBP
$219 USD
View
B
Retailer 4
-
£268 GBP
$359 USD
View
Most Expensive
B
Yorxs
89852E564 · Nov 1
£274 GBP
€350 EUR
View
4 more retailers have this diamond
Prices start from £86 GBPSave up to £188 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 Round
£86 GBP