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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 7566185764

Certificate GIA 7566185764

Diamond specifications and retailer prices

From $5,788 AUD
As of November 5, 2026
Save $6,145 AUD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $11,933 AUD at Wholesale Diamonds Direct · As of November 6, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7566185764. Listed at 11 retailers as of November 5, 2026, with prices from $5,788 to $11,933, a $6,145 spread on the same certified stone. Wholesale Diamonds Direct lists it at $11,933. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.97°
Pavilion angle39.86°
OriginNatural
Grading LabGIA
CertificateGIA 7566185764
Dimensions8.96 × 6.41 × 4.01 mm
L/W Ratio1.40
Culet sizeNone
Top View
8.96 mm6.41 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566185764
Side View
Table 60.0%Crown 41.97°Girdle: MED-THKPavilion 39.86°Culet: NDepth 62.5%

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 5
Current: $8,415 AUD|Low: $5,228 AUD|High: $12,890 AUD|Avg: $8,077 AUD|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$5,228 AUD
Retailer 4$5,788 AUD
Retailer 6$6,768 AUD
Retailer 5$6,920 AUD
Retailer 7$6,923 AUD
Retailer 2$7,105 AUD
Retailer 11$7,133 AUD
Retailer 9$8,195 AUD
Retailer 10$8,195 AUD
Retailer 1$8,415 AUD
Retailer 8$11,022 AUD
Wholesale Diamonds Direct$11,933 AUD

29 data points across 12 retailers

11 retailers$5,788 AUD to $11,933 AUD

A
Cheapest Retailer
-
$5,788 AUD
A
Retailer 2
-
$6,768 AUD
View
A
Retailer 3
-
$6,920 AUD
View
A
Retailer 4
-
$6,923 AUD
View
A
Retailer 5
-
$7,105 AUD
View
A
Retailer 6
-
$7,133 AUD
View
B+
Retailer 7
-
$8,195 AUD
View
B+
Retailer 8
-
$8,195 AUD
View
B+
Retailer 9
-
$8,415 AUD
View
B+
Retailer 10
-
$11,022 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
564560939 · Nov 6
$11,933 AUD
$8,199 USD
View
10 more retailers have this diamond
Prices start from $5,788 AUDSave up to $6,145 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
$5,788 AUD