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Radiant|Natural|IGI

1.51ct K SI1 Radiant Natural Diamond

VG • K/SI1 • IGI 805628261

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 805628261

Diamond specifications and retailer prices

From HK$21,208 HKD
As of November 6, 2026
Save HK$22,932 HKD (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$44,140 HKD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 805628261. Listed at 12 retailers as of November 5, 2026, with prices from HK$21,208 to HK$44,140, a HK$22,932 spread on the same certified stone. NZ Jewellers lists it at HK$44,140. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle30.1°
OriginNatural
Grading LabIGI
CertificateIGI 805628261
Dimensions7.88 × 5.52 × 3.83 mm
L/W Ratio1.43
Top View
7.88 mm5.52 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 805628261
Side View
Table 69.0%Crown 37.2°Girdle: STK-THKPavilion 30.1°CuletDepth 69.4%

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 6
Current: HK$44,140 HKD|Low: HK$21,208 HKD|High: HK$44,140 HKD|Avg: HK$29,151 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3HK$21,208 HKD
Retailer 2HK$24,374 HKD
Retailer 4HK$24,578 HKD
Retailer 8HK$25,338 HKD
Retailer 10HK$26,310 HKD
Retailer 6HK$29,234 HKD
Retailer 5HK$30,872 HKD
Retailer 7HK$30,926 HKD
Retailer 9HK$42,259 HKD
NZ JewellersHK$44,140 HKD

40 data points across 10 retailers

12 retailersHK$21,208 HKD to HK$44,140 HKD

A
Cheapest Retailer
-
HK$21,208 HKD
B+
Retailer 2
-
HK$24,374 HKD
View
B+
Retailer 3
-
HK$24,578 HKD
View
B+
Retailer 4
-
HK$25,276 HKD
View
B+
Retailer 5
-
HK$25,338 HKD
View
B+
Retailer 6
-
HK$26,310 HKD
View
B+
Retailer 7
-
HK$26,459 HKD
View
B+
Retailer 8
-
HK$29,234 HKD
View
B+
Retailer 9
-
HK$30,872 HKD
View
B+
Retailer 10
-
HK$30,926 HKD
View
B
Retailer 11
-
HK$42,259 HKD
View
Most Expensive
B
NZ Jewellers
d03f0501-cf4a-4061-9fb1-4c34e4e16201 · Nov 5
HK$44,140 HKD
$5,632 USD
View
11 more retailers have this diamond
Prices start from HK$21,208 HKDSave up to HK$22,932 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$21,208 HKD