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1.51ct K I1 Round Natural Diamond

EX • K/I1 • IGI 474139848

Shape and cutting style on the report: Round brilliant

Certificate IGI 474139848

Diamond specifications and retailer prices

From $1,534 USD
As of November 5, 2026
Save $2,572 USD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,106 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by IGI 474139848. Listed at 7 retailers as of November 5, 2026, with prices from $1,534 to $4,106, a $2,572 spread on the same certified stone. NZ Jewellers lists it at $4,106. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 474139848
Dimensions7.48 × 7.49 × 4.47 mm
L/W Ratio1.00
Culet sizePointed
Top View
7.48 mm7.49 mm1.51 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 474139848
Side View
Table 59.5%Crown 31.8°Girdle: MediumPavilion 41.2°Culet: NoneDepth 59.7%

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 5
Current: $4,106 USD|Low: $1,287 USD|High: $4,106 USD|Avg: $2,012 USD|+4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9$1,287 USD
Retailer 7$1,534 USD
Retailer 4$1,684 USD
Retailer 5$1,684 USD
Retailer 6$1,761 USD
Retailer 3$1,943 USD
Retailer 8$1,947 USD
Retailer 2$2,283 USD
NZ Jewellers$4,106 USD

24 data points across 9 retailers

7 retailers$1,534 USD to $4,106 USD

A
Cheapest Retailer
-
$1,534 USD
Retailer 2
-
$1,684 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$1,684 USD
View
B+
Retailer 4
-
$1,761 USD
View
B+
Retailer 5
-
$1,943 USD
View
B+
Retailer 6
-
$2,283 USD
View
Most Expensive
B
NZ Jewellers
3510f7a4-7b97-4514-9f30-8fb8fedf16cd · Nov 5
$4,106 USD
View
6 more retailers have this diamond
Prices start from $1,534 USDSave up to $2,572 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
1.51ct Round
$1,534 USD