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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 $3,823 AUD
As of November 6, 2026
Save $2,815 AUD (42%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,332 AUD at Wholesale Diamonds Direct · As of October 9, 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 7 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,823 AUD|Low: $2,994 AUD|High: $7,549 AUD|Avg: $4,684 AUD|-12.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 6, 2026
Retailer 6$2,994 AUD
Retailer 1$3,823 AUD
Retailer 3$3,842 AUD
Retailer 2$3,889 AUD
Retailer 4$4,710 AUD
Retailer 5$5,216 AUD
Wholesale Diamonds Direct$6,639 AUD

32 data points across 7 retailers

7 retailers$3,823 AUD to $6,638 AUD

A
Cheapest Retailer
-
$3,823 AUD
A
Retailer 2
-
$3,842 AUD
View
A
Retailer 3
-
$3,889 AUD
View
A
Retailer 4
-
$4,710 AUD
View
A
Retailer 5
-
$6,638 AUD
View
Retailer 6
-
$7,016 AUD
View
Price last confirmed 18 days ago
Most Expensive
Wholesale Diamonds Direct
403843561 · Oct 9
$7,332 AUD
$5,038 USD
View
Price last confirmed 28 days ago
6 more retailers have this diamond
Prices start from $3,823 AUDSave up to $2,815 AUD

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
$3,823 AUD