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1.51ct F IF Round Natural Diamond

EX • F/IF • IGI 813691005

Shape and cutting style on the report: Round brilliant

Certificate IGI 813691005

Diamond specifications and retailer prices

From $9,009 USD
As of November 6, 2026
Save $7,385 USD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $16,394 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 813691005. Listed at 14 retailers as of November 5, 2026, with prices from $9,009 to $16,394, a $7,385 spread on the same certified stone. NZ Jewellers lists it at $16,394. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 813691005
Dimensions7.26 × 7.31 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.26 mm7.31 mm1.51 ctF / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 813691005
Side View
Table 57.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.1°CuletDepth 62.9%

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: $16,394 USD|Low: $9,009 USD|High: $16,937 USD|Avg: $12,169 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 13$9,009 USD
Retailer 10$9,540 USD
Retailer 4$10,074 USD
Retailer 11$10,720 USD
Retailer 8$10,741 USD
Retailer 12$10,856 USD
Retailer 7$11,602 USD
Retailer 3$11,762 USD
Retailer 6$11,943 USD
Retailer 5$12,040 USD
Retailer 14$13,572 USD
Retailer 2$14,350 USD
Retailer 9$15,321 USD
NZ Jewellers$16,394 USD

45 data points across 14 retailers

14 retailers$9,009 USD to $16,394 USD

A
Cheapest Retailer
-
$9,009 USD
A
Retailer 2
-
$9,540 USD
View
A
Retailer 3
-
$10,074 USD
View
A
Retailer 4
-
$10,720 USD
View
A
Retailer 5
-
$10,741 USD
View
A
Retailer 6
-
$10,856 USD
View
Final sale: no returns
A
Retailer 7
-
$11,602 USD
View
A
Retailer 8
-
$11,762 USD
View
A
Retailer 9
-
$11,943 USD
View
A
Retailer 10
-
$12,040 USD
View
A
Retailer 11
-
$13,572 USD
View
B+
Retailer 12
-
$14,350 USD
View
B+
Retailer 13
-
$15,321 USD
View
Most Expensive
B+
NZ Jewellers
4570dd2a-77d6-4d3b-a76e-917f91e86356 · Nov 5
$16,394 USD
View
13 more retailers have this diamond
Prices start from $9,009 USDSave up to $7,385 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
$9,009 USD