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Round|Natural|GIA

1.00ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6521858903

Certificate GIA 6521858903

Diamond specifications and retailer prices

From HK$18,774 HKD
As of November 6, 2026
Save HK$21,912 HKD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$42,505 HKD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521858903. Listed at 21 retailers as of November 4, 2026, with a 117% 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

1.00
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6521858903
Dimensions6.46 × 6.42 × 3.88 mm
L/W Ratio1.01
Top View
6.46 mm6.42 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521858903
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.2%

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 6
Current: HK$19,456 HKD|Low: HK$18,774 HKD|High: HK$41,297 HKD|Avg: HK$27,507 HKD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8HK$18,774 HKD
Retailer 1HK$19,456 HKD
Retailer 10HK$22,304 HKD
Retailer 2HK$22,516 HKD
Retailer 6HK$23,528 HKD
Retailer 4HK$25,089 HKD
Retailer 3HK$26,093 HKD
Retailer 5HK$28,337 HKD
Retailer 7HK$40,685 HKD
Retailer 9HK$41,148 HKD

36 data points across 10 retailers

21 retailersHK$18,774 HKD to HK$40,685 HKD

A
Cheapest Retailer
-
HK$18,774 HKD
A
Retailer 2
-
HK$19,456 HKD
View
A
Retailer 3
-
HK$22,304 HKD
View
A
Retailer 4
-
HK$22,516 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$23,034 HKD
View
A
Retailer 6
-
HK$23,528 HKD
View
Retailer 7
-
HK$24,399 HKD
View
Price last confirmed 44 days ago
Retailer 8
-
HK$24,399 HKD
View
Price last confirmed 25 days ago
Retailer 9
-
HK$24,399 HKD
View
Price last confirmed 28 days ago
B+
Retailer 10
-
HK$24,712 HKD
View
B+
Retailer 11
-
HK$25,089 HKD
View
Retailer 12
-
HK$25,340 HKD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
HK$25,520 HKD
View
B+
Retailer 14
-
HK$26,093 HKD
View
Retailer 15
-
HK$28,149 HKD
View
Price last confirmed 45 days ago
Retailer 16
-
HK$28,149 HKD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
HK$28,337 HKD
View
B
Retailer 18
-
HK$40,685 HKD
View
Retailer 19
-
HK$41,148 HKD
View
Price last confirmed 9 days ago
Retailer 20
-
HK$42,505 HKD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
648891c1-c419-4a43-b1f7-bc6f347ebb64 · Sep 26
HK$42,505 HKD
$5,418 USD
View
Price last confirmed 40 days ago
20 more retailers have this diamond
Prices start from HK$18,774 HKDSave up to HK$21,912 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
1.00ct Round
HK$18,774 HKD