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Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6561316825

Certificate GIA 6561316825

Diamond specifications and retailer prices

From $311 AUD
₹20,802 INR
As of October 31, 2026
Save $671 AUD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,940 AUD at NZ Jewellers · As of October 23, 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 6561316825. Listed at 17 retailers as of October 31, 2026, with a 216% 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
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6561316825
Dimensions4.34 × 4.32 × 2.70 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
4.34 mm4.32 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561316825
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: Oct 31
Current: $1,940 AUD|Low: $311 AUD|High: $1,940 AUD|Avg: $639 AUD|+11.3%
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
November 1, 2026
Retailer 13$311 AUD
Retailer 6$360 AUD
Retailer 3$383 AUD
Retailer 11$393 AUD
Retailer 8$454 AUD
Retailer 4$466 AUD
Retailer 10$494 AUD
Retailer 7$505 AUD
Retailer 9$541 AUD
Retailer 5$577 AUD
Retailer 12$614 AUD
Retailer 14$625 AUD
Retailer 16$664 AUD
Retailer 15$737 AUD
Retailer 2$982 AUD
NZ Jewellers$1,940 AUD

26 data points across 16 retailers

17 retailers$311 AUD to $982 AUD

A
Cheapest Retailer
-
$311 AUD
₹20,802 INR
A
Retailer 2
-
$360 AUD
$253 USD
View
A
Retailer 3
-
$383 AUD
HK$2,100 HKD
View
A
Retailer 4
-
$393 AUD
$276 USD
View
Final sale: no returns
Retailer 5
-
$454 AUD
$319 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$466 AUD
SGD 442 SGD
View
A
Retailer 7
-
$494 AUD
View
Retailer 8
-
$505 AUD
$355 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
$541 AUD
£299 GBP
View
Retailer 10
-
$577 AUD
$405 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$614 AUD
$431 USD
View
B+
Retailer 12
-
$625 AUD
$439 USD
View
B+
Retailer 13
-
$664 AUD
ZAR 7,537 ZAR
View
Retailer 14
-
$718 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$737 AUD
€493 EUR
View
B
Retailer 16
-
$982 AUD
£543 GBP
View
Most Expensive
NZ Jewellers
42869dcb-cb0e-4621-99dc-c76e31ff19b6 · Oct 23
$1,940 AUD
$1,363 USD
View
Price under review
16 more retailers have this diamond
Prices start from $311 AUDSave up to $671 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
$311 AUD