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Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1567180831

Certificate GIA 1567180831

Diamond specifications and retailer prices

From HK$22,870 HKD
As of November 6, 2026
Save HK$27,838 HKD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$52,832 HKD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1567180831. Listed at 20 retailers as of November 2, 2026, with a 122% 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

1.30
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1567180831
Dimensions6.89 × 6.94 × 4.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.89 mm6.94 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567180831
Side View
Table 57.0%Crown 34.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 63.3%

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: Nov 6
Current: HK$30,519 HKD|Low: HK$22,870 HKD|High: HK$51,319 HKD|Avg: HK$32,434 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
November 7, 2026
Retailer 11HK$22,870 HKD
Retailer 5HK$23,653 HKD
Retailer 8HK$26,679 HKD
Retailer 2HK$27,987 HKD
Retailer 6HK$28,834 HKD
Retailer 1HK$30,519 HKD
Retailer 9HK$31,491 HKD
Retailer 3HK$32,478 HKD
Retailer 4HK$35,268 HKD
Retailer 7HK$37,008 HKD
Retailer 10HK$50,708 HKD

34 data points across 11 retailers

20 retailersHK$22,870 HKD to HK$50,708 HKD

A
Cheapest Retailer
-
HK$22,870 HKD
A
Retailer 2
-
HK$23,653 HKD
View
A
Retailer 3
-
HK$26,679 HKD
View
A
Retailer 4
-
HK$27,838 HKD
View
A
Retailer 5
-
HK$27,862 HKD
View
A
Retailer 6
-
HK$27,987 HKD
View
Final sale: no returns
B+
Retailer 7
-
HK$28,834 HKD
View
Retailer 8
-
HK$30,323 HKD
View
Price last confirmed 18 days ago
Retailer 9
-
HK$30,323 HKD
View
Price last confirmed 45 days ago
Retailer 10
-
HK$30,323 HKD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
HK$30,409 HKD
View
B+
Retailer 12
-
HK$30,519 HKD
View
B+
Retailer 13
-
HK$31,467 HKD
View
B+
Retailer 14
-
HK$31,491 HKD
View
Retailer 15
-
HK$32,478 HKD
View
Price last confirmed 30 days ago
Retailer 16
-
HK$34,986 HKD
View
Price last confirmed 46 days ago
B+
Retailer 17
-
HK$35,268 HKD
View
B+
Retailer 18
-
HK$37,008 HKD
View
B
Retailer 19
-
HK$50,708 HKD
View
Most Expensive
NZ Jewellers
c4e5f4f4-57b6-4a17-9f38-eefb5c955d35 · Sep 21
HK$52,832 HKD
$6,741 USD
View
Price last confirmed 46 days ago
19 more retailers have this diamond
Prices start from HK$22,870 HKDSave up to HK$27,838 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
1.30ct Round
HK$22,870 HKD