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Oval|Natural|IGI

1.51ct M SI1 Oval Natural Diamond

VG • M/SI1 • IGI 626408265

Shape and cutting style on the report: Oval brilliant

Certificate IGI 626408265

Diamond specifications and retailer prices

From $1,568 USD
As of November 6, 2026
Save $2,711 USD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,279 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 626408265. Listed at 13 retailers as of November 5, 2026, with prices from $1,568 to $4,279, a $2,711 spread on the same certified stone. NZ Jewellers lists it at $4,279. 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
M
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.5°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 626408265
Dimensions8.76 × 6.39 × 4.00 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Top View
8.76 mm6.39 mm1.51 ctM / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 626408265
Side View
Table 59.0%Crown 39.5°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 62.6%

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 6
Current: $4,279 USD|Low: $1,568 USD|High: $4,279 USD|Avg: $2,098 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2$1,568 USD
Retailer 3$1,598 USD
Retailer 5$1,748 USD
Retailer 8$1,754 USD
Retailer 10$1,754 USD
Retailer 12$1,820 USD
Retailer 9$1,835 USD
Retailer 4$1,994 USD
Retailer 11$2,024 USD
Retailer 7$2,141 USD
Retailer 6$2,381 USD
NZ Jewellers$4,279 USD

46 data points across 12 retailers

13 retailers$1,568 USD to $4,279 USD

A
Cheapest Retailer
-
$1,568 USD
B+
Retailer 2
-
$1,598 USD
View
B+
Retailer 3
-
$1,748 USD
View
Retailer 4
-
$1,754 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,754 USD
View
B+
Retailer 6
-
$1,820 USD
View
B+
Retailer 7
-
$1,835 USD
View
B+
Retailer 8
-
$1,891 USD
View
B+
Retailer 9
-
$1,994 USD
View
B+
Retailer 10
-
$2,024 USD
View
B+
Retailer 11
-
$2,141 USD
View
B+
Retailer 12
-
$2,381 USD
View
Most Expensive
C
NZ Jewellers
94181ae3-7ee0-4767-abbf-1d44d1400764 · Nov 5
$4,279 USD
View
12 more retailers have this diamond
Prices start from $1,568 USDSave up to $2,711 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
$1,568 USD