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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1242094668

Certificate GIA 1242094668

Diamond specifications and retailer prices

From HK$34,006 HKD
As of November 6, 2026
Save HK$44,242 HKD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$78,249 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242094668. Listed at 8 retailers as of November 5, 2026, with prices from HK$34,006 to HK$78,249, a HK$44,242 spread on the same certified stone. NZ Jewellers lists it at HK$78,249. 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle62.19°
OriginNatural
Grading LabGIA
CertificateGIA 1242094668
Dimensions7.67 × 5.78 × 3.99 mm
L/W Ratio1.33
Key to symbols
Crystal, Pinpoint
Top View
7.67 mm5.78 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1242094668
Side View
Table 65.0%CrownGirdle: STK-THKPavilion 62.19°Culet: NoneDepth 69.1%

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$78,249 HKD|Low: HK$34,006 HKD|High: HK$79,941 HKD|Avg: HK$51,767 HKD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3HK$34,006 HKD
Retailer 8HK$39,610 HKD
Retailer 4HK$43,670 HKD
Retailer 2HK$46,280 HKD
Retailer 6HK$46,781 HKD
Retailer 7HK$49,211 HKD
Retailer 5HK$68,734 HKD
NZ JewellersHK$78,249 HKD

17 data points across 8 retailers

8 retailersHK$34,006 HKD to HK$78,249 HKD

A
Cheapest Retailer
-
HK$34,006 HKD
Retailer 2
-
HK$39,610 HKD
View
Price last confirmed 11 days ago
A
Retailer 3
-
HK$43,670 HKD
View
B+
Retailer 4
-
HK$46,280 HKD
View
B+
Retailer 5
-
HK$46,781 HKD
View
B+
Retailer 6
-
HK$49,211 HKD
View
B
Retailer 7
-
HK$68,734 HKD
View
Most Expensive
B
NZ Jewellers
ee47447a-7f7b-4857-bbf4-0902d1e940e3 · Nov 5
HK$78,249 HKD
$9,984 USD
View
7 more retailers have this diamond
Prices start from HK$34,006 HKDSave up to HK$44,242 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
1.51ct Radiant
HK$34,006 HKD