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0.91ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 380991212

Shape and cutting style on the report: Round brilliant

Certificate IGI 380991212

Diamond specifications and retailer prices

From HK$6,786 HKD
As of November 5, 2026
Save HK$14,498 HKD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$21,284 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.91ct natural round diamond

This 0.91ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 380991212. Listed at 8 retailers as of November 5, 2026, with prices from HK$6,786 to HK$21,284, a HK$14,498 spread on the same certified stone. NZ Jewellers lists it at HK$21,284. 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

0.91
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 380991212
Dimensions6.11 × 6.13 × 3.83 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.11 mm6.13 mm0.91 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 380991212
Side View
Table 59.0%Crown 36.5°Girdle: ThickPavilion 40.5°Culet: NoneDepth 62.7%

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 5
Current: HK$21,284 HKD|Low: HK$5,311 HKD|High: HK$21,284 HKD|Avg: HK$7,994 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 3, 2026
Retailer 9HK$5,311 HKD
Retailer 2HK$6,786 HKD
Retailer 8HK$6,802 HKD
Retailer 3HK$6,872 HKD
Retailer 6HK$7,045 HKD
Retailer 5HK$7,830 HKD
Retailer 7HK$7,830 HKD
Retailer 4HK$11,611 HKD
NZ JewellersHK$21,284 HKD

4 data points across 9 retailers

8 retailersHK$6,786 HKD to HK$21,284 HKD

A
Cheapest Retailer
-
HK$6,786 HKD
Retailer 2
-
HK$6,802 HKD
View
Price last confirmed 109 days ago
A
Retailer 3
-
HK$6,872 HKD
View
A
Retailer 4
-
HK$7,045 HKD
View
B+
Retailer 5
-
HK$7,830 HKD
View
B+
Retailer 6
-
HK$7,830 HKD
View
B
Retailer 7
-
HK$11,611 HKD
View
Most Expensive
C
NZ Jewellers
0fadc34a-7b3e-43bf-aebc-69cb4188f7f7 · Nov 5
HK$21,284 HKD
$2,713 USD
View
7 more retailers have this diamond
Prices start from HK$6,786 HKDSave up to HK$14,498 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
0.91ct Round
HK$6,786 HKD