Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555246897

Certificate GIA 1555246897

Diamond specifications and retailer prices

From HK$15,465 HKD
As of October 31, 2026
Save HK$9,551 HKD (38%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$43,857 HKD at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555246897. Listed at 21 retailers as of October 31, 2026, with a 62% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1555246897
Dimensions6.30 × 6.35 × 4.01 mm
L/W Ratio1.01
Top View
6.30 mm6.35 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555246897
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.4%

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$21,623 HKD|Low: HK$15,095 HKD|High: HK$37,794 HKD|Avg: HK$21,768 HKD|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 11HK$15,465 HKD
Retailer 10HK$16,358 HKD
Retailer 7HK$16,656 HKD
Retailer 4HK$17,017 HKD
Retailer 5HK$17,033 HKD
Retailer 17HK$18,398 HKD
Retailer 3HK$18,673 HKD
Retailer 9HK$19,002 HKD
Retailer 6HK$21,183 HKD
Retailer 15HK$21,183 HKD
Retailer 1HK$21,623 HKD
Retailer 16HK$21,890 HKD
Retailer 8HK$23,503 HKD
Retailer 13HK$23,874 HKD
Retailer 14HK$24,894 HKD
Retailer 12HK$25,016 HKD
Retailer 2HK$35,701 HKD

34 data points across 17 retailers

21 retailersHK$15,465 HKD to HK$25,016 HKD

A
Cheapest Retailer
-
HK$15,465 HKD
A
Retailer 2
-
HK$16,358 HKD
$2,085 USD
View
A
Retailer 3
-
HK$16,656 HKD
$2,123 USD
View
A
Retailer 4
-
HK$17,017 HKD
$2,169 USD
View
Final sale: no returns
A
Retailer 5
-
HK$17,033 HKD
$2,171 USD
View
A
Retailer 6
-
HK$17,195 HKD
A$3,372 AUD
View
B+
Retailer 7
-
HK$18,398 HKD
$2,345 USD
View
B+
Retailer 8
-
HK$18,673 HKD
$2,380 USD
View
Retailer 9
-
HK$19,002 HKD
$2,422 USD
View
Price last confirmed 24 days ago
Retailer 10
-
HK$19,881 HKD
$2,534 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
HK$21,183 HKD
$2,700 USD
View
B+
Retailer 12
-
HK$21,183 HKD
$2,700 USD
View
B+
Retailer 13
-
HK$21,623 HKD
£2,170 GBP
View
B+
Retailer 14
-
HK$21,890 HKD
$2,790 USD
View
Retailer 15
-
HK$21,929 HKD
$2,795 USD
View
Price last confirmed 32 days ago
Retailer 16
-
HK$23,503 HKD
A$4,609 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
HK$23,874 HKD
€2,898 EUR
View
B+
Retailer 18
-
HK$24,894 HKD
$3,173 USD
View
B+
Retailer 19
-
HK$25,016 HKD
ZAR 51,511 ZAR
View
Retailer 20
-
HK$35,701 HKD
£3,583 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
593a8d85-e95d-4e46-bc6d-94eacbe213fd · Sep 27
HK$43,857 HKD
$5,590 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from HK$15,465 HKDSave up to HK$9,551 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$15,465 HKD