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Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 1559766762

Certificate GIA 1559766762

Diamond specifications and retailer prices

From HK$45,578 HKD
$5,809 USD
As of November 2, 2026
Save HK$36,231 HKD (44%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$89,830 HKD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded H 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 1559766762. Listed at 25 retailers as of October 28, 2026, with a 79% 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

1.50
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559766762
Dimensions7.88 × 5.79 × 3.98 mm
L/W Ratio1.36
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Indented Natural
Top View
7.88 mm5.79 mm1.50 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1559766762
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.7%

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 2
Current: HK$51,364 HKD|Low: HK$41,984 HKD|High: HK$82,357 HKD|Avg: HK$54,796 HKD|+0.3%
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 2, 2026
Retailer 8HK$43,329 HKD
Retailer 9HK$44,660 HKD
Retailer 17HK$45,578 HKD
Retailer 15HK$47,116 HKD
Retailer 5HK$47,163 HKD
Retailer 2HK$47,626 HKD
Retailer 4HK$48,660 HKD
Retailer 16HK$49,383 HKD
Retailer 1HK$51,364 HKD
Retailer 11HK$52,282 HKD
Retailer 7HK$52,672 HKD
Retailer 3HK$55,784 HKD
Retailer 10HK$59,555 HKD
Retailer 6HK$60,376 HKD
Retailer 12HK$66,979 HKD
Retailer 13HK$80,743 HKD
Retailer 14HK$81,809 HKD

32 data points across 17 retailers

25 retailersHK$45,578 HKD to HK$81,809 HKD

Retailer 1
-
HK$39,971 HKD
Price last confirmed 25 days ago
Retailer 2
-
HK$44,660 HKD
$5,692 USD
View
Price last confirmed 32 days ago
B+
Retailer 3
-
HK$45,578 HKD
$5,809 USD
View
Final sale: no returns
Retailer 4
-
HK$45,961 HKD
SGD 7,916 SGD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
HK$47,116 HKD
$6,005 USD
View
B+
Retailer 6
-
HK$47,163 HKD
SGD 8,123 SGD
View
B+
Retailer 7
-
HK$47,626 HKD
$6,070 USD
View
B+
Retailer 8
-
HK$48,660 HKD
$6,202 USD
View
B+
Retailer 9
-
HK$49,038 HKD
$6,250 USD
View
B+
Retailer 10
-
HK$49,383 HKD
$6,294 USD
View
B+
Retailer 11
-
HK$51,364 HKD
£5,155 GBP
View
B+
Retailer 12
-
HK$52,282 HKD
£5,247 GBP
View
Retailer 13
-
HK$52,672 HKD
A$10,328 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
HK$53,029 HKD
A$10,398 AUD
View
Retailer 15
-
HK$53,707 HKD
$6,845 USD
View
Price last confirmed 32 days ago
Retailer 16
-
HK$54,538 HKD
$6,951 USD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
HK$55,784 HKD
$7,110 USD
View
B+
Retailer 18
-
HK$59,555 HKD
€7,229 EUR
View
Retailer 19
-
HK$60,376 HKD
$7,695 USD
View
Price last confirmed 18 days ago
Retailer 20
-
HK$61,968 HKD
$7,898 USD
View
Price last confirmed 34 days ago
Retailer 21
-
HK$64,440 HKD
$8,213 USD
View
Price last confirmed 62 days ago
B
Retailer 22
-
HK$66,979 HKD
ZAR 137,909 ZAR
View
B
Retailer 23
-
HK$80,743 HKD
£8,103 GBP
View
B
Retailer 24
-
HK$81,809 HKD
£8,210 GBP
View
Most Expensive
NZ Jewellers
721cd6c7-4b3d-4f06-9213-ed077d3b9afb · Sep 29
HK$89,830 HKD
$11,449 USD
View
Price last confirmed 34 days ago
24 more retailers have this diamond
Prices start from HK$45,578 HKDSave up to HK$36,231 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+
1.50ct Radiant
HK$45,578 HKD