CaratHunter
Plans
Radiant|Natural|GIA

1.30ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 2517871823

Certificate GIA 2517871823

Diamond specifications and retailer prices

From HK$16,247 HKD
As of November 6, 2026
Save HK$7,250 HKD (31%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$23,497 HKD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2517871823. Listed at 6 retailers as of November 5, 2026, with prices from HK$16,247 to HK$23,497, a HK$7,250 spread on the same certified stone. Blue Nile lists it at HK$23,497. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2517871823
Dimensions7.49 × 5.43 × 3.71 mm
L/W Ratio1.38
Top View
7.49 mm5.43 mm1.30 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2517871823
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.3%

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$23,497 HKD|Low: HK$16,051 HKD|High: HK$27,353 HKD|Avg: HK$21,306 HKD|-0.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3HK$16,247 HKD
Retailer 2HK$19,280 HKD
Retailer 5HK$19,688 HKD
Retailer 6HK$20,307 HKD
Retailer 4HK$22,556 HKD
Blue NileHK$23,497 HKD
Retailer 7HK$27,353 HKD

11 data points across 7 retailers

6 retailersHK$16,247 HKD to HK$23,497 HKD

A
Cheapest Retailer
-
HK$16,247 HKD
A
Retailer 2
-
HK$19,280 HKD
View
A
Retailer 3
-
HK$19,688 HKD
View
A
Retailer 4
-
HK$20,307 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$22,556 HKD
View
Most Expensive
A
Blue Nile
24877786 · Nov 5
HK$23,497 HKD
$2,998 USD
View
5 more retailers have this diamond
Prices start from HK$16,247 HKDSave up to HK$7,250 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 Radiant
HK$16,247 HKD