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Round|Natural|IGI

1.50ct K I1 Round Natural Diamond

GD • K/I1 • IGI 586340912

Shape and cutting style on the report: Round brilliant

Certificate IGI 586340912

Diamond specifications and retailer prices

From $1,430 USD
As of November 4, 2026
Save $3,115 USD (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,545 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and I1 clarity (included), with a standard cut grade and certified by IGI 586340912. Listed at 9 retailers as of November 4, 2026, with prices from $1,430 to $4,545, a $3,115 spread on the same certified stone. NZ Jewellers lists it at $4,545. 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
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.6°
Pavilion angle42.1°
OriginNatural
Grading LabIGI
CertificateIGI 586340912
Dimensions7.09 × 7.18 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.09 mm7.18 mm1.50 ctK / I1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 586340912
Side View
Table 65.0%Crown 35.6°Girdle: STK-VTKPavilion 42.1°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,545 USD|Low: $1,428 USD|High: $4,545 USD|Avg: $2,237 USD|+2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$1,430 USD
Retailer 8$1,698 USD
Retailer 6$1,863 USD
Retailer 7$1,863 USD
Retailer 4$1,949 USD
Retailer 9$1,954 USD
Retailer 5$2,150 USD
Retailer 2$2,525 USD
NZ Jewellers$4,545 USD

45 data points across 9 retailers

9 retailers$1,430 USD to $4,545 USD

B+
Cheapest Retailer
-
$1,430 USD
B+
Retailer 2
-
$1,698 USD
View
B+
Retailer 3
-
$1,863 USD
View
Retailer 4
-
$1,863 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,949 USD
View
B+
Retailer 6
-
$1,954 USD
View
B+
Retailer 7
-
$2,150 USD
View
B+
Retailer 8
-
$2,525 USD
View
Most Expensive
C
NZ Jewellers
b6602caf-7782-4266-99d3-3a93b8246885 · Nov 5
$4,545 USD
View
8 more retailers have this diamond
Prices start from $1,430 USDSave up to $3,115 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.

B+
1.50ct Round
$1,430 USD