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Round|Natural|GIA

0.86ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6521840901

Certificate GIA 6521840901

Diamond specifications and retailer prices

From HK$6,433 HKD
As of November 4, 2026
Save HK$8,151 HKD (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$24,767 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.86ct natural round diamond

This 0.86ct 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 GIA 6521840901. Listed at 9 retailers as of November 4, 2026, with a 127% 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

0.86
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6521840901
Dimensions6.07 × 6.05 × 3.79 mm
L/W Ratio1.00
Star length50%
Top View
6.07 mm6.05 mm0.86 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6521840901
Side View
Table 57.0%Crown 36°Girdle: ThickPavilion 41°Culet: NoneDepth 62.6%

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 4
Current: HK$10,520 HKD|Low: HK$6,433 HKD|High: HK$14,671 HKD|Avg: HK$9,649 HKD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4HK$6,433 HKD
Retailer 6HK$6,865 HKD
Retailer 5HK$7,155 HKD
Retailer 1HK$10,520 HKD
Retailer 2HK$11,124 HKD
Retailer 7HK$11,172 HKD
Retailer 3HK$14,584 HKD

35 data points across 7 retailers

9 retailersHK$6,433 HKD to HK$14,584 HKD

A
Cheapest Retailer
-
HK$6,433 HKD
A
Retailer 2
-
HK$6,865 HKD
View
Retailer 3
-
HK$7,155 HKD
View
Price last confirmed 28 days ago
Retailer 4
-
HK$7,429 HKD
View
Price last confirmed 38 days ago
Retailer 5
-
HK$8,253 HKD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
HK$10,520 HKD
View
B+
Retailer 7
-
HK$11,124 HKD
View
B
Retailer 8
-
HK$14,584 HKD
View
Most Expensive
NZ Jewellers
00154141-d021-4db4-8d6e-f4477753c3a0 · Sep 28
HK$24,767 HKD
$3,157 USD
View
Price last confirmed 39 days ago
8 more retailers have this diamond
Prices start from HK$6,433 HKDSave up to HK$8,151 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
0.86ct Round
HK$6,433 HKD