Round|Natural|IGI

1.51ct H IF Round Natural Diamond

EX • H/IF • IGI 642436765

Shape and cutting style on the report: Round brilliant

Certificate IGI 642436765

Diamond specifications and retailer prices

From $8,271 USD
As of November 5, 2026
Save $6,459 USD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $14,730 USD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 642436765. Listed at 9 retailers as of November 5, 2026, with prices from $8,271 to $14,730, a $6,459 spread on the same certified stone. Diamond Quarter lists it at $14,730. 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 angle36.2°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 642436765
Dimensions7.27 × 7.33 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.33 mm1.51 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642436765
Side View
Table 57.0%Crown 36.2°Girdle: MED-STKPavilion 41.1°CuletDepth 62.9%

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: $14,730 USD|Low: $8,271 USD|High: $14,730 USD|Avg: $11,012 USD
Diamond Quarter
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2$8,271 USD
Retailer 3$8,770 USD
Retailer 6$8,833 USD
Retailer 7$8,872 USD
Retailer 4$8,907 USD
Retailer 5$13,300 USD
Diamond Quarter$14,730 USD

3 data points across 7 retailers

9 retailers$8,271 USD to $14,730 USD

A
Cheapest Retailer
-
$8,271 USD
B+
Retailer 2
-
$8,770 USD
View
B+
Retailer 3
-
$8,833 USD
View
Final sale: no returns
B+
Retailer 4
-
$8,872 USD
View
B+
Retailer 5
-
$8,907 USD
View
B+
Retailer 6
-
$9,717 USD
View
B
Retailer 7
-
$11,042 USD
View
B
Retailer 8
-
$13,300 USD
View
Most Expensive
B
Diamond Quarter
1.51IFH6465EB02N · Nov 5
$14,730 USD
£11,599 GBP
View
8 more retailers have this diamond
Prices start from $8,271 USDSave up to $6,459 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
$8,271 USD