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Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6512682612

Certificate GIA 6512682612

Diamond specifications and retailer prices

From $291 AUD
₹19,468 INR
As of November 1, 2026
Save $642 AUD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,819 AUD at NZ Jewellers · As of October 30, 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 6512682612. Listed at 18 retailers as of October 29, 2026, with a 221% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6512682612
Dimensions4.41 × 4.42 × 2.62 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
4.41 mm4.42 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512682612
Side View
Table 59.0%Crown 33°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.4%

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 1
Current: $1,819 AUD|Low: $291 AUD|High: $1,895 AUD|Avg: $598 AUD|-4.0%
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 14$291 AUD
Retailer 15$346 AUD
Retailer 8$353 AUD
Retailer 9$356 AUD
Retailer 10$367 AUD
Retailer 4$401 AUD
Retailer 6$433 AUD
Retailer 5$448 AUD
Retailer 13$472 AUD
Retailer 2$504 AUD
Retailer 7$541 AUD
Retailer 12$587 AUD
Retailer 16$623 AUD
Retailer 3$629 AUD
Retailer 11$689 AUD
Retailer 17$933 AUD
NZ Jewellers$1,819 AUD

24 data points across 17 retailers

18 retailers$291 AUD to $933 AUD

A
Cheapest Retailer
-
$291 AUD
₹19,468 INR
A
Retailer 2
-
$346 AUD
HK$1,900 HKD
View
A
Retailer 3
-
$353 AUD
$248 USD
View
A
Retailer 4
-
$356 AUD
$250 USD
View
A
Retailer 5
-
$367 AUD
$258 USD
View
Final sale: no returns
A
Retailer 6
-
$401 AUD
$282 USD
View
A
Retailer 7
-
$433 AUD
$304 USD
View
A
Retailer 8
-
$448 AUD
$315 USD
View
A
Retailer 9
-
$472 AUD
View
A
Retailer 10
-
$504 AUD
£279 GBP
View
A
Retailer 11
-
$541 AUD
$380 USD
View
B+
Retailer 12
-
$587 AUD
$412 USD
View
B+
Retailer 13
-
$623 AUD
ZAR 7,067 ZAR
View
B+
Retailer 14
-
$629 AUD
$442 USD
View
Retailer 15
-
$675 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$689 AUD
€461 EUR
View
B
Retailer 17
-
$933 AUD
£516 GBP
View
Most Expensive
NZ Jewellers
aa947941-ea85-402e-bd26-5cc4e28c5c0f · Oct 30
$1,819 AUD
$1,278 USD
View
Price under review
17 more retailers have this diamond
Prices start from $291 AUDSave up to $642 AUD

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
$291 AUD