Round|Natural|IGI

1.50ct K IF Round Natural Diamond

EX • K/IF • IGI 671487509

Shape and cutting style on the report: Round brilliant

Certificate IGI 671487509

Diamond specifications and retailer prices

From $4,135 USD
As of November 4, 2026
Save $3,397 USD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,261 USD at NZ Jewellers · As of September 21, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 671487509. Listed at 14 retailers as of November 4, 2026, with a 82% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
K
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 671487509
Dimensions7.49 × 7.51 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.49 mm7.51 mm1.50 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 671487509
Side View
Table 62.0%Crown 32.9°Girdle: MediumPavilion 40.2°Culet: NoneDepth 57.8%

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: $5,324 USD|Low: $4,135 USD|High: $7,642 USD|Avg: $5,294 USD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 8$4,135 USD
Retailer 5$4,396 USD
Retailer 3$4,728 USD
Retailer 7$4,742 USD
Retailer 2$5,276 USD
Retailer 1$5,324 USD
Retailer 6$5,828 USD
Retailer 4$7,532 USD

39 data points across 8 retailers

14 retailers$4,135 USD to $7,532 USD

A
Cheapest Retailer
-
$4,135 USD
A
Retailer 2
-
$4,396 USD
View
A
Retailer 3
-
$4,475 USD
View
A
Retailer 4
-
$4,728 USD
View
Retailer 5
-
$4,742 USD
View
Price last confirmed 36 days ago
Retailer 6
-
$4,742 USD
View
Price last confirmed 50 days ago
Retailer 7
-
$4,742 USD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$5,276 USD
View
A
Retailer 9
-
$5,324 USD
View
Retailer 10
-
$5,471 USD
View
Price last confirmed 45 days ago
Retailer 11
-
$5,471 USD
View
Price last confirmed 38 days ago
A
Retailer 12
-
$5,828 USD
View
B+
Retailer 13
-
$7,532 USD
View
Most Expensive
NZ Jewellers
3c843d50-7945-432f-9b83-03aabbe55d5f · Sep 21
$8,261 USD
View
Price last confirmed 46 days ago
13 more retailers have this diamond
Prices start from $4,135 USDSave up to $3,397 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 Round
$4,135 USD