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1.51ct H IF Round Natural Diamond

EX • H/IF • IGI 788607939

Shape and cutting style on the report: Round brilliant

Certificate IGI 788607939

Diamond specifications and retailer prices

From $5,508 USD
As of November 5, 2026
Save $4,660 USD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,168 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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 788607939. Listed at 9 retailers as of November 4, 2026, with prices from $5,508 to $10,168, a $4,660 spread on the same certified stone. MOH London lists it at $10,168. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 788607939
Dimensions7.21 × 7.27 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.21 mm7.27 mm1.51 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 788607939
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.7%

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 5
Current: $10,168 USD|Low: $5,508 USD|High: $10,649 USD|Avg: $7,599 USD|-4.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3$5,508 USD
Retailer 6$6,370 USD
Retailer 7$6,380 USD
Retailer 8$6,752 USD
Retailer 4$6,876 USD
Retailer 9$7,477 USD
Retailer 2$7,494 USD
Retailer 10$8,702 USD
Retailer 5$8,987 USD
MOH London$10,168 USD

27 data points across 10 retailers

9 retailers$5,508 USD to $10,168 USD

A
Cheapest Retailer
-
$5,508 USD
A
Retailer 2
-
$6,370 USD
View
A
Retailer 3
-
$6,380 USD
View
Retailer 4
-
$6,752 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$6,876 USD
View
A
Retailer 6
-
$7,477 USD
View
A
Retailer 7
-
$7,494 USD
View
B+
Retailer 8
-
$8,987 USD
View
Most Expensive
B+
MOH London
B3E180748 · Nov 4
$10,168 USD
£8,006 GBP
View
8 more retailers have this diamond
Prices start from $5,508 USDSave up to $4,660 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
$5,508 USD