Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 1557154271

Certificate GIA 1557154271

Diamond specifications and retailer prices

From HK$36,530 HKD
As of November 4, 2026
Save HK$31,600 HKD (46%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$77,347 HKD at NZ Jewellers · As of October 6, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1557154271. Listed at 25 retailers as of November 1, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557154271
Dimensions7.35 × 5.83 × 4.00 mm
L/W Ratio1.26
Culet sizeNone
Top View
7.35 mm5.83 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1557154271
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.6%

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 4
Current: HK$77,347 HKD|Low: HK$35,449 HKD|High: HK$77,347 HKD|Avg: HK$51,318 HKD
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
November 7, 2026
Retailer 13HK$38,662 HKD
Retailer 4HK$39,265 HKD
Retailer 11HK$41,899 HKD
Retailer 5HK$42,267 HKD
Retailer 6HK$43,333 HKD
Retailer 12HK$44,344 HKD
Retailer 2HK$44,665 HKD
Retailer 3HK$48,341 HKD
Retailer 7HK$50,246 HKD
Retailer 8HK$56,421 HKD
Retailer 9HK$68,131 HKD
Retailer 10HK$74,949 HKD
NZ JewellersHK$77,347 HKD

31 data points across 13 retailers

25 retailersHK$36,530 HKD to HK$68,131 HKD

A
Cheapest Retailer
-
HK$36,530 HKD
A
Retailer 2
-
HK$38,662 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$38,991 HKD
View
A
Retailer 4
-
HK$39,265 HKD
View
B+
Retailer 5
-
HK$41,428 HKD
View
Retailer 6
-
HK$41,899 HKD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
HK$41,899 HKD
View
Retailer 8
-
HK$41,899 HKD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
HK$42,267 HKD
View
A
Retailer 10
-
HK$43,333 HKD
View
B+
Retailer 11
-
HK$44,344 HKD
View
B+
Retailer 12
-
HK$44,665 HKD
View
B+
Retailer 13
-
HK$45,065 HKD
View
B+
Retailer 14
-
HK$45,065 HKD
View
B+
Retailer 15
-
HK$46,554 HKD
View
B+
Retailer 16
-
HK$47,424 HKD
View
Retailer 17
-
HK$48,341 HKD
View
Price last confirmed 29 days ago
Retailer 18
-
HK$48,341 HKD
View
Price last confirmed 17 days ago
B+
Retailer 19
-
HK$50,246 HKD
View
Retailer 20
-
HK$51,006 HKD
View
Price last confirmed 23 days ago
B
Retailer 21
-
HK$56,421 HKD
View
B
Retailer 22
-
HK$68,131 HKD
View
Retailer 23
-
HK$74,949 HKD
View
Price last confirmed 10 days ago
Retailer 24
-
HK$77,347 HKD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
8be071d4-8e55-4112-a1c0-9c595306d580 · Oct 6
HK$77,347 HKD
$9,869 USD
View
Price last confirmed 31 days ago
24 more retailers have this diamond
Prices start from HK$36,530 HKDSave up to HK$31,600 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$36,530 HKD