Oval|Natural|IGI

1.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • IGI 803677781

Shape and cutting style on the report: Oval brilliant

Certificate IGI 803677781

Diamond specifications and retailer prices

From $3,033 USD
SGD 4,098 SGD
As of October 31, 2026
Save $2,529 USD (45%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,561 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 803677781. Listed at 7 retailers as of October 26, 2026, with prices from $3,033 to $5,561, a $2,529 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,561. 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
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.8°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 803677781
Dimensions9.58 × 6.39 × 3.90 mm
L/W Ratio1.50
Girdle conditionFaceted
Top View
9.58 mm6.39 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 803677781
Side View
Table 61.0%Crown 36.8°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,974 USD|Low: $2,714 USD|High: $6,346 USD|Avg: $4,171 USD|-19.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 2, 2026
Retailer 6$2,714 USD
Retailer 4$3,033 USD
Retailer 3$3,209 USD
Retailer 2$3,245 USD
Retailer 5$3,884 USD
Retailer 1$3,974 USD
Retailer 8$4,422 USD
Retailer 7$5,504 USD
Wholesale Diamonds Direct$5,561 USD

29 data points across 9 retailers

7 retailers$3,033 USD to $5,561 USD

A
Cheapest Retailer
-
$3,033 USD
SGD 4,098 SGD
A
Retailer 2
-
$3,209 USD
View
A
Retailer 3
-
$3,245 USD
View
A
Retailer 4
-
$3,884 USD
View
A
Retailer 5
-
$3,974 USD
€3,785 EUR
View
A
Retailer 6
-
$4,422 USD
View
Most Expensive
A
Wholesale Diamonds Direct
413719287 · Oct 26
$5,561 USD
View
6 more retailers have this diamond
Prices start from $3,033 USDSave up to $2,529 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
$3,033 USD