Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7511532487

Certificate GIA 7511532487

Diamond specifications and retailer prices

From HK$21,232 HKD
As of November 5, 2026
Save HK$10,941 HKD (34%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$48,466 HKD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7511532487. Listed at 18 retailers as of November 5, 2026, with a 52% 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

1.05
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7511532487
Dimensions6.45 × 6.49 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.45 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7511532487
Side View
Table 60.0%Crown 35°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.6%

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 5
Current: HK$32,173 HKD|Low: HK$16,647 HKD|High: HK$39,508 HKD|Avg: HK$23,634 HKD|+34.9%
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 6, 2026
Retailer 3HK$17,556 HKD
Retailer 17HK$18,488 HKD
Retailer 16HK$18,833 HKD
Retailer 6HK$19,656 HKD
Retailer 12HK$20,095 HKD
Retailer 5HK$20,769 HKD
Retailer 7HK$20,918 HKD
Retailer 4HK$20,965 HKD
Retailer 11HK$21,232 HKD
Retailer 8HK$21,788 HKD
Retailer 15HK$24,147 HKD
Retailer 9HK$24,625 HKD
Retailer 13HK$28,364 HKD
Retailer 10HK$30,393 HKD
Retailer 1HK$32,173 HKD
Retailer 14HK$35,394 HKD
Retailer 2HK$39,508 HKD

28 data points across 17 retailers

18 retailersHK$21,232 HKD to HK$32,173 HKD

Retailer 1
-
HK$17,556 HKD
Price last confirmed 12 days ago
Retailer 2
-
HK$18,488 HKD
View
Price last confirmed 16 days ago
Retailer 3
-
HK$18,833 HKD
View
Price last confirmed 12 days ago
Retailer 4
-
HK$20,095 HKD
View
Price last confirmed 13 days ago
Retailer 5
-
HK$20,769 HKD
View
Price last confirmed 14 days ago
Retailer 6
-
HK$20,918 HKD
View
Price last confirmed 15 days ago
Retailer 7
-
HK$20,965 HKD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
HK$21,232 HKD
View
Retailer 9
-
HK$22,501 HKD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
HK$22,909 HKD
View
Retailer 11
-
HK$24,147 HKD
View
Price last confirmed 16 days ago
Retailer 12
-
HK$24,625 HKD
View
Price last confirmed 33 days ago
Retailer 13
-
HK$28,364 HKD
View
Price last confirmed 15 days ago
B
Retailer 14
-
HK$30,393 HKD
View
B
Retailer 15
-
HK$32,173 HKD
View
Retailer 16
-
HK$35,394 HKD
View
Price last confirmed 14 days ago
Retailer 17
-
HK$39,508 HKD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
f26449d6-4833-4092-be3e-55f2c9c9e34a · Sep 21
HK$48,466 HKD
$6,184 USD
View
Price last confirmed 45 days ago
17 more retailers have this diamond
Prices start from HK$21,232 HKDSave up to HK$10,941 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+
1.05ct Round
HK$21,232 HKD