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Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554743066

Certificate GIA 2554743066

Diamond specifications and retailer prices

From $266 AUD
₹17,816 INR
As of October 22, 2026
15 retailers carry this diamond
Most expensive: $1,865 AUD 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: $644 AUD|Low: $266 AUD|High: $955 AUD|Avg: $534 AUD|-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$266 AUD
Retailer 3$328 AUD
Retailer 13$354 AUD
Retailer 12$405 AUD
Retailer 6$440 AUD
Retailer 8$442 AUD
Retailer 9$444 AUD
Retailer 11$556 AUD
Retailer 4$568 AUD
Retailer 14$580 AUD
Retailer 1$644 AUD
Retailer 5$654 AUD
Retailer 7$659 AUD
Retailer 2$877 AUD

25 data points across 14 retailers

15 retailers$266 AUD to $1,865 AUD

Retailer 1
-
$266 AUD
₹17,816 INR
Price last confirmed 10 days ago
Retailer 2
-
$328 AUD
HK$1,800 HKD
View
Price last confirmed 8 days ago
Retailer 3
-
$354 AUD
$249 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$405 AUD
SGD 384 SGD
View
Price last confirmed 9 days ago
Retailer 5
-
$409 AUD
$287 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$442 AUD
£244 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
$448 AUD
View
Price last confirmed 9 days ago
Retailer 8
-
$460 AUD
$323 USD
View
Price last confirmed 33 days ago
Retailer 9
-
$554 AUD
$389 USD
View
Price last confirmed 33 days ago
Retailer 10
-
$556 AUD
$390 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$568 AUD
$399 USD
View
Price last confirmed 13 days ago
Retailer 12
-
$580 AUD
ZAR 6,585 ZAR
View
Price last confirmed 11 days ago
Retailer 13
-
$654 AUD
View
Price last confirmed 28 days ago
Retailer 14
-
$877 AUD
£485 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
35785c8d-be8e-4bb3-aeb3-d9872576647c · Sep 28
$1,865 AUD
$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
$266 AUD