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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 1459117061

Certificate GIA 1459117061

Diamond specifications and retailer prices

From HK$20,888 HKD
As of November 1, 2026
Save HK$24,548 HKD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$50,879 HKD at NZ Jewellers · As of September 30, 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 J 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 1459117061. Listed at 21 retailers as of November 1, 2026, with a 118% 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

1.51
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1459117061
Dimensions9.18 × 5.19 × 3.55 mm
L/W Ratio1.77
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
9.18 mm5.19 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1459117061
Side View
Table 65.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.4%

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 1
Current: HK$22,390 HKD|Low: HK$20,688 HKD|High: HK$49,362 HKD|Avg: HK$30,368 HKD|-7.8%
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
November 2, 2026
Retailer 10HK$20,888 HKD
Retailer 1HK$22,390 HKD
Retailer 12HK$24,785 HKD
Retailer 13HK$25,075 HKD
Retailer 4HK$26,097 HKD
Retailer 3HK$27,967 HKD
Retailer 11HK$28,305 HKD
Retailer 7HK$28,394 HKD
Retailer 2HK$28,872 HKD
Retailer 5HK$31,284 HKD
Retailer 6HK$31,799 HKD
Retailer 9HK$33,396 HKD
Retailer 8HK$45,436 HKD

32 data points across 13 retailers

21 retailersHK$20,888 HKD to HK$45,436 HKD

A
Cheapest Retailer
-
HK$20,888 HKD
A
Retailer 2
-
HK$22,390 HKD
₹271,787 INR
View
A
Retailer 3
-
HK$24,785 HKD
$3,159 USD
View
A
Retailer 4
-
HK$25,075 HKD
$3,196 USD
View
Final sale: no returns
A
Retailer 5
-
HK$26,097 HKD
SGD 4,495 SGD
View
A
Retailer 6
-
HK$27,374 HKD
$3,489 USD
View
A
Retailer 7
-
HK$27,381 HKD
$3,490 USD
View
A
Retailer 8
-
HK$27,967 HKD
SGD 4,817 SGD
View
A
Retailer 9
-
HK$28,305 HKD
$3,608 USD
View
A
Retailer 10
-
HK$28,394 HKD
£2,850 GBP
View
A
Retailer 11
-
HK$28,872 HKD
$3,680 USD
View
B+
Retailer 12
-
HK$29,109 HKD
A$5,708 AUD
View
Retailer 13
-
HK$29,210 HKD
$3,723 USD
View
Price last confirmed 25 days ago
Retailer 14
-
HK$29,210 HKD
$3,723 USD
View
Price last confirmed 25 days ago
Retailer 15
-
HK$30,331 HKD
$3,866 USD
View
Price last confirmed 32 days ago
Retailer 16
-
HK$31,284 HKD
A$6,135 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
HK$31,799 HKD
€3,860 EUR
View
B+
Retailer 18
-
HK$33,396 HKD
ZAR 68,766 ZAR
View
Retailer 19
-
HK$33,697 HKD
$4,295 USD
View
Price last confirmed 24 days ago
B
Retailer 20
-
HK$45,436 HKD
£4,560 GBP
View
Most Expensive
NZ Jewellers
034ab330-a956-44c8-ade5-01dcb0f68dbe · Sep 30
HK$50,879 HKD
$6,485 USD
View
Price last confirmed 32 days ago
20 more retailers have this diamond
Prices start from HK$20,888 HKDSave up to HK$24,548 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$20,888 HKD