CaratHunter
Plans
Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7558784147

Certificate GIA 7558784147

Diamond specifications and retailer prices

From $4,517 AUD
$3,173 USD
As of October 28, 2026
Save $3,768 AUD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,286 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 J 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 7558784147. Listed at 14 retailers as of October 26, 2026, with prices from $4,517 to $8,286, a $3,768 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,286. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle38.87°
OriginNatural
Grading LabGIA
CertificateGIA 7558784147
Dimensions8.95 × 6.41 × 3.98 mm
L/W Ratio1.40
Culet sizeNone
Top View
8.95 mm6.41 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558784147
Side View
Table 59.0%Crown 40.3°Girdle: MED-THKPavilion 38.87°Culet: NoneDepth 62.0%

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: Oct 28
Current: $5,269 AUD|Low: $4,517 AUD|High: $8,905 AUD|Avg: $5,889 AUD|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
October 29, 2026
Retailer 9$4,517 AUD
Retailer 7$4,594 AUD
Retailer 8$4,602 AUD
Retailer 3$4,752 AUD
Retailer 6$4,827 AUD
Retailer 1$5,269 AUD
Retailer 2$5,441 AUD
Retailer 11$5,709 AUD
Retailer 10$5,766 AUD
Retailer 12$5,852 AUD
Retailer 5$6,033 AUD
Retailer 4$7,618 AUD
Wholesale Diamonds Direct$8,286 AUD

36 data points across 13 retailers

14 retailers$4,517 AUD to $8,286 AUD

A
Cheapest Retailer
-
$4,517 AUD
$3,173 USD
A
Retailer 2
-
$4,594 AUD
$3,227 USD
View
A
Retailer 3
-
$4,602 AUD
SGD 4,368 SGD
View
A
Retailer 4
-
$4,752 AUD
$3,338 USD
View
A
Retailer 5
-
$4,827 AUD
$3,391 USD
View
A
Retailer 6
-
$5,269 AUD
£2,914 GBP
View
B+
Retailer 7
-
$5,441 AUD
SGD 5,165 SGD
View
A
Retailer 8
-
$5,709 AUD
$4,010 USD
View
A
Retailer 9
-
$5,766 AUD
$4,050 USD
View
A
Retailer 10
-
$5,852 AUD
$4,111 USD
View
B+
Retailer 11
-
$6,033 AUD
€4,036 EUR
View
B+
Retailer 12
-
$6,284 AUD
$4,414 USD
View
B+
Retailer 13
-
$7,618 AUD
$5,351 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
593994293 · Oct 26
$8,286 AUD
$5,820 USD
View
13 more retailers have this diamond
Prices start from $4,517 AUDSave up to $3,768 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
$4,517 AUD