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 $2,829 NZD
As of November 6, 2026
Save $4,890 NZD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,719 NZD 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 $2,829 to $7,719, a $4,890 spread on the same certified stone. NZ Jewellers lists it at $7,719. 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
Colour
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: $7,719 NZD|Low: $2,829 NZD|High: $7,719 NZD|Avg: $3,784 NZD
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$2,829 NZD
Retailer 3$2,883 NZD
Retailer 5$3,153 NZD
Retailer 8$3,164 NZD
Retailer 10$3,164 NZD
Retailer 12$3,283 NZD
Retailer 9$3,310 NZD
Retailer 4$3,597 NZD
Retailer 11$3,651 NZD
Retailer 7$3,862 NZD
Retailer 6$4,295 NZD
NZ Jewellers$7,719 NZD

46 data points across 12 retailers

13 retailers$2,829 NZD to $7,719 NZD

A
Cheapest Retailer
-
$2,829 NZD
B+
Retailer 2
-
$2,883 NZD
View
B+
Retailer 3
-
$3,153 NZD
View
Retailer 4
-
$3,164 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$3,164 NZD
View
B+
Retailer 6
-
$3,283 NZD
View
B+
Retailer 7
-
$3,310 NZD
View
B+
Retailer 8
-
$3,411 NZD
View
B+
Retailer 9
-
$3,597 NZD
View
B+
Retailer 10
-
$3,651 NZD
View
B+
Retailer 11
-
$3,862 NZD
View
B+
Retailer 12
-
$4,295 NZD
View
Most Expensive
C
NZ Jewellers
94181ae3-7ee0-4767-abbf-1d44d1400764 · Nov 5
$7,719 NZD
$4,279 USD
View
12 more retailers have this diamond
Prices start from $2,829 NZDSave up to $4,890 NZD

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
$2,829 NZD