Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 2536653789

Certificate GIA 2536653789

Diamond specifications and retailer prices

From $3,558 USD
HK$27,800 HKD
As of October 31, 2026
Save $4,105 USD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,724 USD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2536653789. Listed at 19 retailers as of October 29, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41.9°
OriginNatural
Grading LabGIA
CertificateGIA 2536653789
Dimensions8.78 × 6.35 × 4.15 mm
L/W Ratio1.38
Top View
8.78 mm6.35 mm1.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536653789
Side View
Table 63.0%CrownGirdle: STK-VTKPavilion 41.9°Culet: NoneDepth 65.4%

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 31
Current: $3,979 USD|Low: $3,533 USD|High: $8,051 USD|Avg: $4,827 USD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 13$3,558 USD
Retailer 11$3,561 USD
Retailer 8$3,715 USD
Retailer 3$3,788 USD
Retailer 18$3,963 USD
Retailer 1$3,979 USD
Retailer 6$4,115 USD
Retailer 4$4,274 USD
Retailer 7$4,330 USD
Retailer 14$4,493 USD
Retailer 16$4,589 USD
Retailer 5$4,972 USD
Retailer 10$5,048 USD
Retailer 9$5,317 USD
Retailer 15$5,391 USD
Retailer 12$5,883 USD
Retailer 2$7,335 USD
Retailer 17$7,663 USD

28 data points across 18 retailers

19 retailers$3,558 USD to $7,663 USD

A
Cheapest Retailer
-
$3,558 USD
HK$27,800 HKD
A
Retailer 2
-
$3,561 USD
View
Retailer 3
-
$3,715 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$3,788 USD
View
B+
Retailer 5
-
$3,963 USD
View
B+
Retailer 6
-
$3,979 USD
View
Final sale: no returns
B+
Retailer 7
-
$4,115 USD
View
B+
Retailer 8
-
$4,274 USD
View
B+
Retailer 9
-
$4,330 USD
View
B+
Retailer 10
-
$4,493 USD
£3,538 GBP
View
B+
Retailer 11
-
$4,589 USD
View
B
Retailer 12
-
$4,972 USD
View
Retailer 13
-
$5,048 USD
A$7,766 AUD
View
Price last confirmed 22 days ago
B
Retailer 14
-
$5,317 USD
SGD 7,185 SGD
View
B
Retailer 15
-
$5,391 USD
€5,134 EUR
View
B
Retailer 16
-
$5,883 USD
ZAR 95,042 ZAR
View
B
Retailer 17
-
$7,335 USD
View
B
Retailer 18
-
$7,663 USD
£6,034 GBP
View
Most Expensive
NZ Jewellers
f6b78bb8-c63d-4413-955f-f244919ba279 · Sep 29
$8,724 USD
View
Price last confirmed 32 days ago
18 more retailers have this diamond
Prices start from $3,558 USDSave up to $4,105 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
$3,558 USD