Round|Natural|IGI

1.51ct F IF Round Natural Diamond

EX • F/IF • IGI 850680691

Shape and cutting style on the report: Round brilliant

Certificate IGI 850680691

Diamond specifications and retailer prices

From $9,556 USD
As of November 6, 2026
Save $6,929 USD (42%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $16,485 USD at MOH London · As of November 4, 2026
View at MOH London

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 850680691. Listed at 6 retailers as of November 4, 2026, with prices from $9,556 to $16,485, a $6,929 spread on the same certified stone. MOH London lists it at $16,485. 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
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 850680691
Dimensions7.25 × 7.33 × 4.51 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.25 mm7.33 mm1.51 ctF / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 850680691
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.8%

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: $16,485 USD|Low: $9,370 USD|High: $16,485 USD|Avg: $11,330 USD|+2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$9,556 USD
Retailer 5$9,796 USD
Retailer 6$10,435 USD
Retailer 4$11,338 USD
Retailer 2$12,661 USD
MOH London$16,485 USD

10 data points across 6 retailers

6 retailers$9,556 USD to $16,485 USD

A
Cheapest Retailer
-
$9,556 USD
A
Retailer 2
-
$9,796 USD
View
A
Retailer 3
-
$10,435 USD
View
A
Retailer 4
-
$11,338 USD
View
A
Retailer 5
-
$12,661 USD
View
Most Expensive
B+
MOH London
700A2FD4F · Nov 4
$16,485 USD
£12,980 GBP
View
5 more retailers have this diamond
Prices start from $9,556 USDSave up to $6,929 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
$9,556 USD