Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6445352304

Certificate GIA 6445352304

Diamond specifications and retailer prices

From HK$18,390 HKD
$2,344 USD
As of October 31, 2026
Save HK$21,336 HKD (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$41,378 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 6445352304. Listed at 25 retailers as of October 31, 2026, with a 116% 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
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6445352304
Dimensions6.40 × 6.34 × 3.93 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.40 mm6.34 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6445352304
Side View
Table 57.0%Crown 34.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.0%

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$18,751 HKD|Low: HK$17,127 HKD|High: HK$40,205 HKD|Avg: HK$26,077 HKD|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 1HK$18,751 HKD
Retailer 9HK$19,269 HKD
Retailer 10HK$19,857 HKD
Retailer 3HK$22,854 HKD
Retailer 8HK$24,400 HKD
Retailer 6HK$25,246 HKD
Retailer 2HK$25,375 HKD
Retailer 5HK$26,040 HKD
Retailer 7HK$29,195 HKD
Retailer 4HK$39,727 HKD

35 data points across 10 retailers

25 retailersHK$18,390 HKD to HK$39,727 HKD

A
Cheapest Retailer
-
HK$18,390 HKD
$2,344 USD
B+
Retailer 2
-
HK$18,751 HKD
$2,390 USD
View
B+
Retailer 3
-
HK$18,877 HKD
$2,406 USD
View
B+
Retailer 4
-
HK$19,269 HKD
$2,456 USD
View
B+
Retailer 5
-
HK$19,771 HKD
$2,520 USD
View
B+
Retailer 6
-
HK$19,857 HKD
$2,531 USD
View
Final sale: no returns
B+
Retailer 7
-
HK$19,938 HKD
A$3,910 AUD
View
B+
Retailer 8
-
HK$21,144 HKD
$2,695 USD
View
Retailer 9
-
HK$21,521 HKD
$2,743 USD
View
Price last confirmed 20 days ago
Retailer 10
-
HK$21,521 HKD
$2,743 USD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
HK$21,790 HKD
$2,777 USD
View
Retailer 12
-
HK$22,345 HKD
$2,848 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
HK$22,854 HKD
£2,294 GBP
View
B
Retailer 14
-
HK$24,400 HKD
$3,110 USD
View
B
Retailer 15
-
HK$24,557 HKD
$3,130 USD
View
B
Retailer 16
-
HK$24,557 HKD
$3,130 USD
View
Retailer 17
-
HK$24,832 HKD
$3,165 USD
View
Price last confirmed 23 days ago
B
Retailer 18
-
HK$25,246 HKD
£2,534 GBP
View
B
Retailer 19
-
HK$25,342 HKD
$3,230 USD
View
Retailer 20
-
HK$25,375 HKD
A$4,976 AUD
View
Price last confirmed 24 days ago
B
Retailer 21
-
HK$26,040 HKD
€3,161 EUR
View
Retailer 22
-
HK$27,578 HKD
$3,515 USD
View
Price last confirmed 17 days ago
B
Retailer 23
-
HK$29,195 HKD
ZAR 60,116 ZAR
View
B
Retailer 24
-
HK$39,727 HKD
£3,987 GBP
View
Most Expensive
NZ Jewellers
5b7c1452-920d-407a-a1bd-0f029b656fa7 · Sep 27
HK$41,378 HKD
$5,274 USD
View
Price last confirmed 35 days ago
24 more retailers have this diamond
Prices start from HK$18,390 HKDSave up to HK$21,336 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$18,390 HKD