CaratHunter
Plans
Round|Natural|GIA

0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6512682612

Certificate GIA 6512682612

Diamond specifications and retailer prices

From HK$1,604 HKD
₹19,468 INR
As of November 1, 2026
Save HK$3,538 HKD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$10,027 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 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: HK$10,027 HKD|Low: HK$1,604 HKD|High: HK$10,443 HKD|Avg: HK$3,296 HKD|-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 14HK$1,604 HKD
Retailer 15HK$1,908 HKD
Retailer 8HK$1,946 HKD
Retailer 9HK$1,961 HKD
Retailer 10HK$2,024 HKD
Retailer 4HK$2,212 HKD
Retailer 6HK$2,385 HKD
Retailer 5HK$2,471 HKD
Retailer 13HK$2,603 HKD
Retailer 2HK$2,778 HKD
Retailer 7HK$2,981 HKD
Retailer 12HK$3,232 HKD
Retailer 16HK$3,432 HKD
Retailer 3HK$3,468 HKD
Retailer 11HK$3,798 HKD
Retailer 17HK$5,141 HKD
NZ JewellersHK$10,027 HKD

24 data points across 17 retailers

18 retailersHK$1,604 HKD to HK$5,141 HKD

A
Cheapest Retailer
-
HK$1,604 HKD
₹19,468 INR
A
Retailer 2
-
HK$1,908 HKD
View
A
Retailer 3
-
HK$1,946 HKD
$248 USD
View
A
Retailer 4
-
HK$1,961 HKD
$250 USD
View
A
Retailer 5
-
HK$2,024 HKD
$258 USD
View
Final sale: no returns
A
Retailer 6
-
HK$2,212 HKD
$282 USD
View
A
Retailer 7
-
HK$2,385 HKD
$304 USD
View
A
Retailer 8
-
HK$2,471 HKD
$315 USD
View
A
Retailer 9
-
HK$2,603 HKD
A$510 AUD
View
A
Retailer 10
-
HK$2,778 HKD
£279 GBP
View
A
Retailer 11
-
HK$2,981 HKD
$380 USD
View
B+
Retailer 12
-
HK$3,232 HKD
$412 USD
View
B+
Retailer 13
-
HK$3,432 HKD
ZAR 7,067 ZAR
View
B+
Retailer 14
-
HK$3,468 HKD
$442 USD
View
Retailer 15
-
HK$3,723 HKD
A$730 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
HK$3,798 HKD
€461 EUR
View
B
Retailer 17
-
HK$5,141 HKD
£516 GBP
View
Most Expensive
NZ Jewellers
aa947941-ea85-402e-bd26-5cc4e28c5c0f · Oct 30
HK$10,027 HKD
$1,278 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$1,604 HKDSave up to HK$3,538 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$1,604 HKD