Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 5566006502

Certificate GIA 5566006502

Diamond specifications and retailer prices

From HK$50,945 HKD
$6,493 USD
As of November 1, 2026
Save HK$32,967 HKD (39%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$100,697 HKD at NZ Jewellers · As of October 21, 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 G 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 5566006502. Listed at 16 retailers as of November 1, 2026, with a 65% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.91°
OriginNatural
Grading LabGIA
CertificateGIA 5566006502
Dimensions7.85 × 5.79 × 3.86 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.85 mm5.79 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566006502
Side View
Table 67.0%Crown 47.91°GirdlePavilionCulet: NoneDepth 66.7%

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$100,697 HKD|Low: HK$50,945 HKD|High: HK$104,683 HKD|Avg: HK$64,967 HKD|-3.8%
NZ Jewellers
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
November 2, 2026
Retailer 3HK$50,945 HKD
Retailer 6HK$52,506 HKD
Retailer 13HK$55,550 HKD
Retailer 5HK$55,566 HKD
Retailer 2HK$56,728 HKD
Retailer 10HK$56,764 HKD
Retailer 8HK$57,771 HKD
Retailer 16HK$58,047 HKD
Retailer 7HK$60,203 HKD
Retailer 15HK$61,129 HKD
Retailer 14HK$61,491 HKD
Retailer 9HK$65,775 HKD
Retailer 4HK$69,469 HKD
Retailer 12HK$73,973 HKD
Retailer 11HK$83,911 HKD
NZ JewellersHK$100,697 HKD

25 data points across 16 retailers

16 retailersHK$50,945 HKD to HK$83,911 HKD

A
Cheapest Retailer
-
HK$50,945 HKD
$6,493 USD
A
Retailer 2
-
HK$52,506 HKD
$6,692 USD
View
B+
Retailer 3
-
HK$55,550 HKD
$7,080 USD
View
B+
Retailer 4
-
HK$55,566 HKD
$7,082 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$56,728 HKD
£5,693 GBP
View
B+
Retailer 6
-
HK$56,764 HKD
£5,697 GBP
View
Retailer 7
-
HK$57,771 HKD
$7,363 USD
View
Price last confirmed 17 days ago
Retailer 8
-
HK$58,047 HKD
A$11,382 AUD
View
Price last confirmed 11 days ago
Retailer 9
-
HK$60,203 HKD
$7,673 USD
View
Price last confirmed 11 days ago
Retailer 10
-
HK$61,129 HKD
$7,791 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
HK$61,491 HKD
$7,837 USD
View
B+
Retailer 12
-
HK$65,775 HKD
€7,984 EUR
View
Retailer 13
-
HK$69,469 HKD
$8,854 USD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
HK$73,973 HKD
ZAR 152,310 ZAR
View
B
Retailer 15
-
HK$83,911 HKD
£8,421 GBP
View
Most Expensive
NZ Jewellers
6fae2622-e45e-4ac6-8d72-ae0669f0c512 · Oct 21
HK$100,697 HKD
$12,834 USD
View
Price last confirmed 12 days ago
15 more retailers have this diamond
Prices start from HK$50,945 HKDSave up to HK$32,967 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$50,945 HKD