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Oval|Natural|IGI

1.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 720526840

Shape and cutting style on the report: Oval brilliant

Certificate IGI 720526840

Diamond specifications and retailer prices

From $2,497 USD
As of November 5, 2026
Save $3,332 USD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,829 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 720526840. Listed at 14 retailers as of November 5, 2026, with prices from $2,497 to $5,829, a $3,332 spread on the same certified stone. NZ Jewellers lists it at $5,829. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.4°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 720526840
Dimensions9.16 × 6.48 × 4.01 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Top View
9.16 mm6.48 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 720526840
Side View
Table 58.0%Crown 33.4°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 61.9%

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: $3,403 USD|Low: $2,497 USD|High: $4,942 USD|Avg: $3,147 USD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8$2,497 USD
Retailer 4$2,714 USD
Retailer 6$2,735 USD
Retailer 7$2,788 USD
Retailer 9$2,895 USD
Retailer 2$3,003 USD
Retailer 5$3,262 USD
Retailer 1$3,403 USD
Retailer 3$4,871 USD

39 data points across 9 retailers

14 retailers$2,497 USD to $5,829 USD

A
Cheapest Retailer
-
$2,497 USD
B+
Retailer 2
-
$2,658 USD
View
A
Retailer 3
-
$2,714 USD
View
B+
Retailer 4
-
$2,735 USD
View
Retailer 5
-
$2,788 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,788 USD
View
B+
Retailer 7
-
$2,895 USD
View
B+
Retailer 8
-
$2,929 USD
View
B+
Retailer 9
-
$3,003 USD
View
B+
Retailer 10
-
$3,217 USD
View
B+
Retailer 11
-
$3,262 USD
View
B+
Retailer 12
-
$3,403 USD
View
B
Retailer 13
-
$4,871 USD
View
Most Expensive
B
NZ Jewellers
2dc671e7-14e7-4444-ab2c-7216e85e81f4 · Nov 5
$5,829 USD
View
13 more retailers have this diamond
Prices start from $2,497 USDSave up to $3,332 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
$2,497 USD