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Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 6551118729

Certificate GIA 6551118729

Diamond specifications and retailer prices

From $4,840 USD
As of November 6, 2026
Save $4,638 USD (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,478 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551118729. Listed at 8 retailers as of November 4, 2026, with prices from $4,840 to $9,478, a $4,638 spread on the same certified stone. MOH London lists it at $9,478. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551118729
Dimensions9.31 × 6.06 × 4.10 mm
L/W Ratio1.54
Top View
9.31 mm6.06 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551118729
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.6%

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: $9,478 USD|Low: $4,840 USD|High: $9,618 USD|Avg: $6,806 USD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$4,840 USD
Retailer 3$6,126 USD
Retailer 5$6,450 USD
Retailer 4$7,045 USD
MOH London$9,478 USD

42 data points across 5 retailers

8 retailers$4,840 USD to $9,478 USD

A
Cheapest Retailer
-
$4,840 USD
A
Retailer 2
-
$5,611 USD
View
A
Retailer 3
-
$5,626 USD
View
A
Retailer 4
-
$6,126 USD
View
Retailer 5
-
$6,450 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$6,608 USD
View
A
Retailer 7
-
$7,045 USD
View
Most Expensive
B+
MOH London
AFA2496EC · Nov 4
$9,478 USD
£7,463 GBP
View
7 more retailers have this diamond
Prices start from $4,840 USDSave up to $4,638 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 Oval
$4,840 USD