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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 $4,057 SGD
$3,173 USD
As of October 28, 2026
Save $3,384 SGD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,440 SGD 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 $4,057 to $7,440, a $3,384 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,440. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $4,731 SGD|Low: $4,057 SGD|High: $7,997 SGD|Avg: $5,288 SGD|-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$4,057 SGD
Retailer 7$4,125 SGD
Retailer 8$4,132 SGD
Retailer 3$4,267 SGD
Retailer 6$4,335 SGD
Retailer 1$4,731 SGD
Retailer 2$4,886 SGD
Retailer 11$5,126 SGD
Retailer 10$5,178 SGD
Retailer 12$5,255 SGD
Retailer 5$5,418 SGD
Retailer 4$6,841 SGD
Wholesale Diamonds Direct$7,440 SGD

36 data points across 13 retailers

14 retailers$4,057 SGD to $7,440 SGD

A
Cheapest Retailer
-
$4,057 SGD
$3,173 USD
A
Retailer 2
-
$4,125 SGD
$3,227 USD
View
A
Retailer 3
-
$4,132 SGD
View
A
Retailer 4
-
$4,267 SGD
$3,338 USD
View
A
Retailer 5
-
$4,335 SGD
$3,391 USD
View
A
Retailer 6
-
$4,731 SGD
£2,914 GBP
View
B+
Retailer 7
-
$4,886 SGD
View
A
Retailer 8
-
$5,126 SGD
$4,010 USD
View
A
Retailer 9
-
$5,178 SGD
$4,050 USD
View
A
Retailer 10
-
$5,255 SGD
$4,111 USD
View
B+
Retailer 11
-
$5,418 SGD
€4,036 EUR
View
B+
Retailer 12
-
$5,643 SGD
$4,414 USD
View
B+
Retailer 13
-
$6,841 SGD
$5,351 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
593994293 · Oct 26
$7,440 SGD
$5,820 USD
View
13 more retailers have this diamond
Prices start from $4,057 SGDSave up to $3,384 SGD

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
$4,057 SGD