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Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5406598535

Certificate GIA 5406598535

Diamond specifications and retailer prices

From HK$19,276 HKD
As of October 31, 2026
Save HK$33,805 HKD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$53,080 HKD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct 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 5406598535. Listed at 21 retailers as of October 31, 2026, with prices from HK$19,276 to HK$53,080, a HK$33,805 spread on the same certified stone. Diamond Quarter lists it at HK$53,080. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5406598535
Dimensions6.54 × 6.52 × 3.88 mm
L/W Ratio1.00
Top View
6.54 mm6.52 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5406598535
Side View
Table 58.0%Crown 32.5°Girdle: MED-STKPavilion 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: Oct 31
Current: HK$25,622 HKD|Low: HK$19,229 HKD|High: HK$46,875 HKD|Avg: HK$27,860 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12HK$19,276 HKD
Retailer 2HK$19,582 HKD
Retailer 10HK$24,163 HKD
Retailer 3HK$24,359 HKD
Retailer 4HK$24,712 HKD
Retailer 1HK$25,622 HKD
Retailer 5HK$27,191 HKD
Retailer 6HK$27,537 HKD
Retailer 11HK$28,109 HKD
Retailer 7HK$32,683 HKD
Retailer 8HK$44,655 HKD
Retailer 9HK$46,875 HKD

29 data points across 12 retailers

21 retailersHK$19,276 HKD to HK$53,080 HKD

A
Cheapest Retailer
-
HK$19,276 HKD
A
Retailer 2
-
HK$19,582 HKD
View
A
Retailer 3
-
HK$23,096 HKD
View
A
Retailer 4
-
HK$24,163 HKD
View
B+
Retailer 5
-
HK$24,359 HKD
View
B+
Retailer 6
-
HK$24,712 HKD
View
Final sale: no returns
B+
Retailer 7
-
HK$25,622 HKD
View
B+
Retailer 8
-
HK$26,776 HKD
View
Retailer 9
-
HK$26,776 HKD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
HK$27,191 HKD
View
B+
Retailer 11
-
HK$27,537 HKD
View
B+
Retailer 12
-
HK$27,803 HKD
View
B+
Retailer 13
-
HK$28,109 HKD
View
Retailer 14
-
HK$28,706 HKD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
HK$30,894 HKD
View
B+
Retailer 16
-
HK$32,683 HKD
View
B
Retailer 17
-
HK$44,655 HKD
View
B
Retailer 18
-
HK$46,648 HKD
View
B
Retailer 19
-
HK$46,875 HKD
View
B
Retailer 20
-
HK$49,527 HKD
View
Most Expensive
B
Diamond Quarter
1.0SI1D5435FF5FN · Nov 5
HK$53,080 HKD
£5,328 GBP
View
20 more retailers have this diamond
Prices start from HK$19,276 HKDSave up to HK$33,805 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$19,276 HKD