Round|Natural|GIA

1.51ct H IF Round Natural Diamond

EX • H/IF • GIA 1242057320

Certificate GIA 1242057320

Diamond specifications and retailer prices

From $9,465 USD
As of October 28, 2026
Save $5,200 USD (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $14,665 USD at MOH London · As of November 1, 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 GIA 1242057320. Listed at 7 retailers as of October 28, 2026, with prices from $9,465 to $14,665, a $5,200 spread on the same certified stone. MOH London lists it at $14,665. 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 angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1242057320
Dimensions7.29 × 7.33 × 4.52 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.29 mm7.33 mm1.51 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242057320
Side View
Table 58.0%Crown 35°Girdle: Sli. ThickPavilion 40.8°Culet: NoneDepth 61.7%

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: Oct 28
Current: $14,665 USD|Low: $9,465 USD|High: $15,902 USD|Avg: $11,484 USD|-5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$9,465 USD
Retailer 4$9,684 USD
Retailer 3$10,120 USD
Retailer 7$10,650 USD
Retailer 5$11,202 USD
Retailer 2$11,778 USD
MOH London$14,665 USD

41 data points across 7 retailers

7 retailers$9,465 USD to $14,665 USD

A
Cheapest Retailer
-
$9,465 USD
A
Retailer 2
-
$9,684 USD
View
B+
Retailer 3
-
$10,120 USD
£7,968 GBP
View
Retailer 4
-
$10,650 USD
A$16,384 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$11,202 USD
View
B+
Retailer 6
-
$11,778 USD
€11,217 EUR
View
Most Expensive
B
MOH London
87C91E364 · Nov 1
$14,665 USD
£11,547 GBP
View
6 more retailers have this diamond
Prices start from $9,465 USDSave up to $5,200 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
$9,465 USD