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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6381212727

Certificate GIA 6381212727

Diamond specifications and retailer prices

From HK$28,604 HKD
As of November 6, 2026
Save HK$44,643 HKD (61%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$73,246 HKD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6381212727. Listed at 25 retailers as of November 5, 2026, with prices from HK$28,604 to HK$73,246, a HK$44,643 spread on the same certified stone. Diamond Quarter lists it at HK$73,246. 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

1.01
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6381212727
Dimensions6.40 × 6.37 × 3.96 mm
L/W Ratio1.00
Top View
6.40 mm6.37 mm1.01 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6381212727
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$36,519 HKD|Low: HK$29,247 HKD|High: HK$61,506 HKD|Avg: HK$39,820 HKD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7HK$29,341 HKD
Retailer 5HK$30,424 HKD
Retailer 8HK$31,906 HKD
Retailer 1HK$36,519 HKD
Retailer 4HK$37,335 HKD
Retailer 9HK$38,465 HKD
Retailer 3HK$40,426 HKD
Retailer 2HK$46,561 HKD
Retailer 6HK$60,612 HKD

36 data points across 9 retailers

25 retailersHK$28,604 HKD to HK$73,246 HKD

B+
Cheapest Retailer
-
HK$28,604 HKD
B+
Retailer 2
-
HK$29,318 HKD
View
B+
Retailer 3
-
HK$29,341 HKD
View
B+
Retailer 4
-
HK$30,424 HKD
View
B
Retailer 5
-
HK$31,906 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$32,754 HKD
View
B+
Retailer 7
-
HK$34,370 HKD
View
Retailer 8
-
HK$34,574 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$34,574 HKD
View
B+
Retailer 10
-
HK$34,574 HKD
View
B+
Retailer 11
-
HK$36,519 HKD
View
B+
Retailer 12
-
HK$36,590 HKD
View
B+
Retailer 13
-
HK$37,335 HKD
View
Retailer 14
-
HK$38,465 HKD
View
Price last confirmed 28 days ago
B
Retailer 15
-
HK$38,912 HKD
View
B
Retailer 16
-
HK$38,912 HKD
View
B
Retailer 17
-
HK$39,893 HKD
View
B
Retailer 18
-
HK$40,167 HKD
View
B
Retailer 19
-
HK$40,426 HKD
View
Retailer 20
-
HK$42,137 HKD
View
Price last confirmed 14 days ago
B
Retailer 21
-
HK$46,561 HKD
View
B
Retailer 22
-
HK$55,222 HKD
View
B
Retailer 23
-
HK$60,612 HKD
View
B
Retailer 24
-
HK$66,488 HKD
View
Most Expensive
B
Diamond Quarter
1.01SI1D63278FF2N · Nov 5
HK$73,246 HKD
£7,352 GBP
View
24 more retailers have this diamond
Prices start from HK$28,604 HKDSave up to HK$44,643 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.

B+
1.01ct Round
HK$28,604 HKD