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Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7558653539

Certificate GIA 7558653539

Diamond specifications and retailer prices

From $258 AUD
₹17,265 INR
As of October 29, 2026
Save $586 AUD (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,787 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 7558653539. Listed at 17 retailers as of October 29, 2026, with a 227% 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 angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7558653539
Dimensions4.34 × 4.35 × 2.69 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal
Top View
4.34 mm4.35 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558653539
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

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 29
Current: $564 AUD|Low: $257 AUD|High: $905 AUD|Avg: $505 AUD|+19.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 5$258 AUD
Retailer 11$309 AUD
Retailer 4$354 AUD
Retailer 12$392 AUD
Retailer 10$432 AUD
Retailer 9$438 AUD
Retailer 8$545 AUD
Retailer 3$547 AUD
Retailer 2$560 AUD
Retailer 1$564 AUD
Retailer 7$629 AUD
Retailer 6$843 AUD

26 data points across 12 retailers

17 retailers$258 AUD to $843 AUD

A
Cheapest Retailer
-
$258 AUD
₹17,265 INR
A
Retailer 2
-
$309 AUD
HK$1,700 HKD
View
A
Retailer 3
-
$354 AUD
$249 USD
View
A
Retailer 4
-
$391 AUD
$275 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
$392 AUD
SGD 373 SGD
View
A
Retailer 6
-
$432 AUD
$304 USD
View
A
Retailer 7
-
$438 AUD
View
A
Retailer 8
-
$441 AUD
$310 USD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
$532 AUD
$374 USD
View
Price last confirmed 29 days ago
A
Retailer 10
-
$545 AUD
$383 USD
View
A
Retailer 11
-
$547 AUD
$385 USD
View
B+
Retailer 12
-
$560 AUD
ZAR 6,362 ZAR
View
B+
Retailer 13
-
$564 AUD
£312 GBP
View
B+
Retailer 14
-
$627 AUD
View
Price last confirmed 25 days ago
B+
Retailer 15
-
$629 AUD
€421 EUR
View
B
Retailer 16
-
$843 AUD
£467 GBP
View
Most Expensive
B
NZ Jewellers
cca0e59c-1fa5-47bb-b1e8-9a60c2a11332 · Sep 28
$1,787 AUD
$1,257 USD
View
Price last confirmed 31 days ago
16 more retailers have this diamond
Prices start from $258 AUDSave up to $586 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
$258 AUD