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Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2566481298

Certificate GIA 2566481298

Diamond specifications and retailer prices

From HK$1,557 HKD
₹18,898 INR
As of November 1, 2026
Save HK$3,515 HKD (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$9,941 HKD 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 2566481298. Listed at 17 retailers as of November 1, 2026, with a 226% 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 angle33.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2566481298
Dimensions4.36 × 4.39 × 2.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
4.36 mm4.39 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566481298
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.5%

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: HK$9,941 HKD|Low: HK$1,557 HKD|High: HK$10,270 HKD|Avg: HK$3,374 HKD|-3.2%
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 1, 2026
Retailer 2HK$1,557 HKD
Retailer 9HK$1,908 HKD
Retailer 8HK$1,977 HKD
Retailer 14HK$2,197 HKD
Retailer 6HK$2,334 HKD
Retailer 15HK$2,448 HKD
Retailer 5HK$2,462 HKD
Retailer 4HK$2,558 HKD
Retailer 11HK$2,780 HKD
Retailer 16HK$2,889 HKD
Retailer 13HK$2,958 HKD
Retailer 7HK$3,277 HKD
Retailer 12HK$3,732 HKD
Retailer 3HK$3,837 HKD
Retailer 10HK$4,442 HKD
Retailer 17HK$5,072 HKD
NZ JewellersHK$9,941 HKD

22 data points across 17 retailers

17 retailersHK$1,557 HKD to HK$5,072 HKD

A
Cheapest Retailer
-
HK$1,557 HKD
₹18,898 INR
A
Retailer 2
-
HK$1,908 HKD
View
A
Retailer 3
-
HK$1,977 HKD
$252 USD
View
A
Retailer 4
-
HK$2,197 HKD
$280 USD
View
A
Retailer 5
-
HK$2,334 HKD
SGD 402 SGD
View
A
Retailer 6
-
HK$2,448 HKD
$312 USD
View
A
Retailer 7
-
HK$2,462 HKD
SGD 424 SGD
View
A
Retailer 8
-
HK$2,558 HKD
A$502 AUD
View
A
Retailer 9
-
HK$2,780 HKD
£279 GBP
View
A
Retailer 10
-
HK$2,889 HKD
$368 USD
View
A
Retailer 11
-
HK$2,958 HKD
$377 USD
View
B+
Retailer 12
-
HK$3,277 HKD
$418 USD
View
B+
Retailer 13
-
HK$3,732 HKD
€453 EUR
View
B+
Retailer 14
-
HK$3,837 HKD
$489 USD
View
B+
Retailer 15
-
HK$4,442 HKD
£446 GBP
View
B
Retailer 16
-
HK$5,072 HKD
£509 GBP
View
Most Expensive
NZ Jewellers
f98440c1-a12f-4388-b13c-82faf4528c48 · Oct 30
HK$9,941 HKD
$1,267 USD
View
Price under review
16 more retailers have this diamond
Prices start from HK$1,557 HKDSave up to HK$3,515 HKD

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
HK$1,557 HKD