Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From HK$51,127 HKD
$6,516 USD
As of October 25, 2026
Save HK$51,135 HKD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$103,219 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 19 retailers as of October 24, 2026, with a 100% 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions7.67 × 5.68 × 3.79 mm
L/W Ratio1.35
Top View
7.67 mm5.68 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: 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: Oct 25
Current: HK$102,262 HKD|Low: HK$51,127 HKD|High: HK$103,219 HKD|Avg: HK$61,579 HKD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 2HK$51,127 HKD
Retailer 10HK$52,651 HKD
Retailer 7HK$54,328 HKD
Retailer 4HK$55,388 HKD
Retailer 3HK$56,243 HKD
Retailer 8HK$57,326 HKD
Retailer 5HK$57,945 HKD
Retailer 9HK$60,590 HKD
Retailer 6HK$63,909 HKD
NZ JewellersHK$102,262 HKD

39 data points across 10 retailers

19 retailersHK$51,127 HKD to HK$102,262 HKD

A
Cheapest Retailer
-
HK$51,127 HKD
$6,516 USD
A
Retailer 2
-
HK$51,127 HKD
$6,516 USD
View
Retailer 3
-
HK$51,606 HKD
$6,577 USD
View
Price last confirmed 22 days ago
A
Retailer 4
-
HK$52,651 HKD
CA$9,320 CAD
View
A
Retailer 5
-
HK$54,328 HKD
$6,924 USD
View
A
Retailer 6
-
HK$55,388 HKD
$7,059 USD
View
B+
Retailer 7
-
HK$55,388 HKD
$7,059 USD
View
Retailer 8
-
HK$55,906 HKD
$7,125 USD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
HK$56,243 HKD
$7,168 USD
View
B+
Retailer 10
-
HK$56,243 HKD
$7,168 USD
View
Retailer 11
-
HK$56,769 HKD
$7,235 USD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
HK$57,326 HKD
$7,306 USD
View
B+
Retailer 13
-
HK$57,945 HKD
£5,815 GBP
View
B+
Retailer 14
-
HK$60,590 HKD
$7,722 USD
View
B+
Retailer 15
-
HK$63,909 HKD
$8,145 USD
View
Retailer 16
-
HK$64,513 HKD
$8,222 USD
View
Price last confirmed 53 days ago
Retailer 17
-
HK$64,513 HKD
$8,222 USD
View
Price last confirmed 31 days ago
B
Retailer 18
-
HK$102,262 HKD
$13,033 USD
View
Most Expensive
NZ Jewellers
ff8c50ad-30fc-4b3c-9998-5b3eced69d03 · Sep 30
HK$103,219 HKD
$13,155 USD
View
Price last confirmed 29 days ago
18 more retailers have this diamond
Prices start from HK$51,127 HKDSave up to HK$51,135 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$51,127 HKD