CaratHunter
Plans
Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 2536653789

Certificate GIA 2536653789

Diamond specifications and retailer prices

From $4,533 SGD
HK$27,700 HKD
As of November 1, 2026
Save $5,157 SGD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,153 SGD 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 November 1, 2026, with a 114% 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
Colour
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: Nov 1
Current: $5,147 SGD|Low: $4,516 SGD|High: $10,292 SGD|Avg: $6,202 SGD|-3.8%
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
November 2, 2026
Retailer 14$4,533 SGD
Retailer 18$4,552 SGD
Retailer 8$4,749 SGD
Retailer 12$4,816 SGD
Retailer 5$5,066 SGD
Retailer 1$5,147 SGD
Retailer 7$5,261 SGD
Retailer 16$5,434 SGD
Retailer 13$5,510 SGD
Retailer 11$5,777 SGD
Retailer 4$5,867 SGD
Retailer 15$6,325 SGD
Retailer 10$6,453 SGD
Retailer 9$6,797 SGD
Retailer 3$6,891 SGD
Retailer 2$7,521 SGD
Retailer 6$9,377 SGD
Retailer 17$9,689 SGD

26 data points across 18 retailers

19 retailers$4,533 SGD to $9,689 SGD

A
Cheapest Retailer
-
$4,533 SGD
HK$27,700 HKD
A
Retailer 2
-
$4,552 SGD
$3,561 USD
View
Retailer 3
-
$4,749 SGD
$3,715 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
$4,816 SGD
$3,767 USD
View
B+
Retailer 5
-
$5,066 SGD
$3,963 USD
View
B+
Retailer 6
-
$5,147 SGD
$4,026 USD
View
Final sale: no returns
B+
Retailer 7
-
$5,261 SGD
$4,115 USD
View
B+
Retailer 8
-
$5,434 SGD
$4,251 USD
View
B+
Retailer 9
-
$5,510 SGD
$4,310 USD
View
B+
Retailer 10
-
$5,777 SGD
£3,558 GBP
View
B+
Retailer 11
-
$5,867 SGD
$4,589 USD
View
B
Retailer 12
-
$6,325 SGD
$4,948 USD
View
Retailer 13
-
$6,453 SGD
A$7,766 AUD
View
Price last confirmed 23 days ago
B
Retailer 14
-
$6,797 SGD
View
B
Retailer 15
-
$6,891 SGD
€5,134 EUR
View
B
Retailer 16
-
$7,521 SGD
ZAR 95,042 ZAR
View
B
Retailer 17
-
$9,377 SGD
$7,335 USD
View
B
Retailer 18
-
$9,689 SGD
£5,968 GBP
View
Most Expensive
NZ Jewellers
f6b78bb8-c63d-4413-955f-f244919ba279 · Sep 29
$11,153 SGD
$8,724 USD
View
Price last confirmed 33 days ago
18 more retailers have this diamond
Prices start from $4,533 SGDSave up to $5,157 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
$4,533 SGD