Radiant|Natural|IGI

1.50ct K SI2 Radiant Natural Diamond

VG • K/SI2 • IGI 805628357

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

Certificate IGI 805628357

Diamond specifications and retailer prices

From $2,553 USD
As of November 6, 2026
Save $2,758 USD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,311 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 805628357. Listed at 10 retailers as of November 5, 2026, with prices from $2,553 to $5,311, a $2,758 spread on the same certified stone. NZ Jewellers lists it at $5,311. 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

1.50
Carat
K
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle33.3°
OriginNatural
Grading LabIGI
CertificateIGI 805628357
Dimensions7.85 × 5.56 × 3.91 mm
L/W Ratio1.41
Top View
7.85 mm5.56 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 805628357
Side View
Table 69.0%Crown 36.4°Girdle: ThickPavilion 33.3°CuletDepth 70.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,311 USD|Low: $2,553 USD|High: $5,311 USD|Avg: $3,646 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$2,553 USD
Retailer 3$3,038 USD
Retailer 6$3,049 USD
Retailer 9$3,054 USD
Retailer 8$3,166 USD
Retailer 5$3,518 USD
Retailer 4$3,713 USD
Retailer 7$5,085 USD
NZ Jewellers$5,311 USD

41 data points across 9 retailers

10 retailers$2,553 USD to $5,311 USD

A
Cheapest Retailer
-
$2,553 USD
B+
Retailer 2
-
$3,038 USD
View
B+
Retailer 3
-
$3,049 USD
View
B+
Retailer 4
-
$3,054 USD
View
B+
Retailer 5
-
$3,166 USD
View
B+
Retailer 6
-
$3,191 USD
View
B+
Retailer 7
-
$3,518 USD
View
B+
Retailer 8
-
$3,713 USD
View
B
Retailer 9
-
$5,085 USD
View
Most Expensive
B
NZ Jewellers
0b63c881-ea09-4ee3-9a73-2b52b5393e56 · Nov 5
$5,311 USD
View
9 more retailers have this diamond
Prices start from $2,553 USDSave up to $2,758 USD

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
1.50ct Radiant
$2,553 USD