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Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 7558784147

Certificate GIA 7558784147

Diamond specifications and retailer prices

From $3,173 USD
As of October 28, 2026
Save $2,647 USD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,820 USD 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 $3,173 to $5,820, a $2,647 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,820. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $3,701 USD|Low: $3,173 USD|High: $6,255 USD|Avg: $4,136 USD|-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$3,173 USD
Retailer 7$3,227 USD
Retailer 8$3,232 USD
Retailer 3$3,338 USD
Retailer 6$3,391 USD
Retailer 1$3,701 USD
Retailer 2$3,822 USD
Retailer 11$4,010 USD
Retailer 10$4,050 USD
Retailer 12$4,111 USD
Retailer 5$4,238 USD
Retailer 4$5,351 USD
Wholesale Diamonds Direct$5,820 USD

36 data points across 13 retailers

14 retailers$3,173 USD to $5,820 USD

A
Cheapest Retailer
-
$3,173 USD
A
Retailer 2
-
$3,227 USD
View
A
Retailer 3
-
$3,232 USD
SGD 4,368 SGD
View
A
Retailer 4
-
$3,338 USD
View
A
Retailer 5
-
$3,391 USD
View
A
Retailer 6
-
$3,701 USD
£2,914 GBP
View
B+
Retailer 7
-
$3,822 USD
SGD 5,165 SGD
View
A
Retailer 8
-
$4,010 USD
View
A
Retailer 9
-
$4,050 USD
View
A
Retailer 10
-
$4,111 USD
View
B+
Retailer 11
-
$4,238 USD
€4,036 EUR
View
B+
Retailer 12
-
$4,414 USD
View
B+
Retailer 13
-
$5,351 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
593994293 · Oct 26
$5,820 USD
View
13 more retailers have this diamond
Prices start from $3,173 USDSave up to $2,647 USD

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
$3,173 USD