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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 7551304262

Certificate GIA 7551304262

Diamond specifications and retailer prices

From $4,547 AUD
SGD 4,316 SGD
As of October 31, 2026
Save $3,650 AUD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,197 AUD at Wholesale Diamonds Direct · As of October 26, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551304262. Listed at 9 retailers as of October 26, 2026, with prices from $4,547 to $8,197, a $3,650 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,197. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.88°
Pavilion angle40.13°
OriginNatural
Grading LabGIA
CertificateGIA 7551304262
Dimensions8.92 × 6.41 × 4.03 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.92 mm6.41 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551304262
Side View
Table 59.0%Crown 38.88°Girdle: MED-THKPavilion 40.13°Culet: NoneDepth 62.8%

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: Oct 31
Current: $5,258 AUD|Low: $3,642 AUD|High: $8,844 AUD|Avg: $5,686 AUD|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 1, 2026
Retailer 2$3,642 AUD
Retailer 5$4,547 AUD
Retailer 6$4,563 AUD
Retailer 4$4,812 AUD
Retailer 1$5,258 AUD
Retailer 8$5,377 AUD
Retailer 9$5,529 AUD
Retailer 7$5,790 AUD
Retailer 3$5,943 AUD
Retailer 10$7,181 AUD
Wholesale Diamonds Direct$8,197 AUD

38 data points across 11 retailers

9 retailers$4,547 AUD to $8,197 AUD

A
Cheapest Retailer
-
$4,547 AUD
SGD 4,316 SGD
A
Retailer 2
-
$4,563 AUD
$3,205 USD
View
A
Retailer 3
-
$4,812 AUD
$3,380 USD
View
A
Retailer 4
-
$5,258 AUD
£2,908 GBP
View
A
Retailer 5
-
$5,377 AUD
SGD 5,104 SGD
View
A
Retailer 6
-
$5,529 AUD
$3,884 USD
View
A
Retailer 7
-
$5,790 AUD
$4,067 USD
View
A
Retailer 8
-
$5,943 AUD
€3,976 EUR
View
Most Expensive
B+
Wholesale Diamonds Direct
564560933 · Oct 26
$8,197 AUD
$5,758 USD
View
8 more retailers have this diamond
Prices start from $4,547 AUDSave up to $3,650 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
$4,547 AUD