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Oval|Natural|IGI

1.51ct G SI2 Oval Natural Diamond

ID • G/SI2 • IGI 797

Certificate IGI 797

Diamond specifications and retailer prices

From $4,739 NZD
As of November 6, 2026
Save $3,489 NZD (42%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,698 NZD at Wholesale Diamonds Direct · As of October 19, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 6 retailers as of November 6, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 797
Dimensions8.96 × 6.42 × 3.93 mm
L/W Ratio1.40
Top View
8.96 mm6.42 mm1.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 797
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.2%

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: $4,739 NZD|Low: $3,711 NZD|High: $9,356 NZD|Avg: $5,805 NZD|-12.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 6, 2026
Retailer 6$3,711 NZD
Retailer 1$4,739 NZD
Retailer 3$4,762 NZD
Retailer 2$4,820 NZD
Retailer 4$5,837 NZD
Retailer 5$6,465 NZD
Wholesale Diamonds Direct$8,228 NZD

32 data points across 7 retailers

6 retailers$4,739 NZD to $8,228 NZD

A
Cheapest Retailer
-
$4,739 NZD
A
Retailer 2
-
$4,762 NZD
View
A
Retailer 3
-
$4,820 NZD
View
A
Retailer 4
-
$5,837 NZD
View
A
Retailer 5
-
$8,228 NZD
View
Most Expensive
Wholesale Diamonds Direct
502681288 · Oct 19
$8,698 NZD
$4,822 USD
View
Price last confirmed 19 days ago
5 more retailers have this diamond
Prices start from $4,739 NZDSave up to $3,489 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
$4,739 NZD