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Oval|Natural|GIA

1.51ct M SI2 Oval Natural Diamond

ID • M/SI2 • GIA 6532666645

Certificate GIA 6532666645

Diamond specifications and retailer prices

From $3,216 AUD
As of November 3, 2026
Save $3,506 AUD (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,722 AUD at NZ Jewellers · As of November 2, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532666645. Listed at 6 retailers as of November 2, 2026, with prices from $3,216 to $6,722, a $3,506 spread on the same certified stone. NZ Jewellers lists it at $6,722. 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
M
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.94°
Pavilion angle40.28°
OriginNatural
Grading LabGIA
CertificateGIA 6532666645
Dimensions8.97 × 6.42 × 4.03 mm
L/W Ratio1.40
Top View
8.97 mm6.42 mm1.51 ctM / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6532666645
Side View
Table 61.0%Crown 37.94°GirdlePavilion 40.28°CuletDepth 62.7%

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 3
Current: $6,722 AUD|Low: $3,216 AUD|High: $6,725 AUD|Avg: $3,933 AUD|-0.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$3,216 AUD
Retailer 3$3,307 AUD
Retailer 4$3,365 AUD
Retailer 6$3,391 AUD
Retailer 8$3,572 AUD
Retailer 2$3,605 AUD
Retailer 7$3,954 AUD
NZ Jewellers$6,722 AUD

44 data points across 8 retailers

6 retailers$3,216 AUD to $6,722 AUD

A
Cheapest Retailer
-
$3,216 AUD
A
Retailer 2
-
$3,307 AUD
View
B+
Retailer 3
-
$3,365 AUD
View
B+
Retailer 4
-
$3,391 AUD
View
B+
Retailer 5
-
$3,605 AUD
View
Most Expensive
B
NZ Jewellers
c9a91147-1d70-4a0e-a0c1-0d8c696b7b7c · Nov 2
$6,722 AUD
$4,619 USD
View
5 more retailers have this diamond
Prices start from $3,216 AUDSave up to $3,506 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
$3,216 AUD