Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554743066

Certificate GIA 2554743066

Diamond specifications and retailer prices

From £140 GBP
₹17,816 INR
As of October 22, 2026
15 retailers carry this diamond
Most expensive: £978 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.31ct natural round diamond

This 0.31ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554743066. Listed at 15 retailers as of September 28, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.31
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2554743066
Dimensions4.36 × 4.37 × 2.67 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal
Top View
4.36 mm4.37 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554743066
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.1%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 22
Current: £338 GBP|Low: £140 GBP|High: £500 GBP|Avg: £280 GBP|-6.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 24, 2026
Retailer 10£140 GBP
Retailer 3£172 GBP
Retailer 13£186 GBP
Retailer 12£212 GBP
Retailer 6£231 GBP
Retailer 8£232 GBP
Retailer 9£233 GBP
Retailer 11£291 GBP
Retailer 4£298 GBP
Retailer 14£304 GBP
Retailer 1£338 GBP
Retailer 5£343 GBP
Retailer 7£346 GBP
Retailer 2£460 GBP

25 data points across 14 retailers

15 retailers£140 GBP to £978 GBP

Retailer 1
-
£140 GBP
₹17,816 INR
Price last confirmed 10 days ago
Retailer 2
-
£172 GBP
HK$1,800 HKD
View
Price last confirmed 7 days ago
Retailer 3
-
£186 GBP
$249 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£212 GBP
SGD 384 SGD
View
Price last confirmed 9 days ago
Retailer 5
-
£214 GBP
$287 USD
View
Price last confirmed 31 days ago
Retailer 6
-
£232 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
£235 GBP
A$484 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
£241 GBP
$323 USD
View
Price last confirmed 33 days ago
Retailer 9
-
£290 GBP
$389 USD
View
Price last confirmed 32 days ago
Retailer 10
-
£291 GBP
$390 USD
View
Price last confirmed 9 days ago
Retailer 11
-
£298 GBP
$399 USD
View
Price last confirmed 13 days ago
Retailer 12
-
£304 GBP
ZAR 6,585 ZAR
View
Price last confirmed 11 days ago
Retailer 13
-
£343 GBP
A$707 AUD
View
Price last confirmed 27 days ago
Retailer 14
-
£460 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
35785c8d-be8e-4bb3-aeb3-d9872576647c · Sep 28
£978 GBP
$1,310 USD
View
Price under review
14 more retailers have this diamond

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.

0.31ct Round
£140 GBP