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Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 1549153020

Certificate GIA 1549153020

Diamond specifications and retailer prices

From $3,453 SGD
HK$21,100 HKD
As of November 1, 2026
Save $4,352 SGD (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $7,805 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half 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 1549153020. Listed at 26 retailers as of October 30, 2026, with prices from $3,453 to $7,805, a $4,352 spread on the same certified stone. NZ Jewellers lists it at $7,805. 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

1.30
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.32°
Pavilion angle35.72°
OriginNatural
Grading LabGIA
CertificateGIA 1549153020
Dimensions8.32 × 5.94 × 3.79 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather, Pinpoint
Top View
8.32 mm5.94 mm1.30 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549153020
Side View
Table 63.0%Crown 41.32°Girdle: THK-VTKPavilion 35.72°Culet: NoneDepth 63.7%

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: $3,474 SGD|Low: $3,453 SGD|High: $7,582 SGD|Avg: $4,789 SGD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7$3,453 SGD
Retailer 1$3,474 SGD
Retailer 10$3,925 SGD
Retailer 2$4,134 SGD
Retailer 9$4,270 SGD
Retailer 3$4,370 SGD
Retailer 5$4,682 SGD
Retailer 8$5,244 SGD
Retailer 6$5,507 SGD
Retailer 4$7,493 SGD

25 data points across 10 retailers

26 retailers$3,453 SGD to $7,805 SGD

B+
Cheapest Retailer
-
$3,453 SGD
HK$21,100 HKD
A
Retailer 2
-
$3,474 SGD
₹258,770 INR
View
B+
Retailer 3
-
$3,825 SGD
$2,992 USD
View
B+
Retailer 4
-
$3,925 SGD
View
B+
Retailer 5
-
$3,977 SGD
$3,111 USD
View
B+
Retailer 6
-
$4,134 SGD
$3,234 USD
View
Final sale: no returns
B+
Retailer 7
-
$4,270 SGD
$3,340 USD
View
B
Retailer 8
-
$4,315 SGD
$3,375 USD
View
B+
Retailer 9
-
$4,370 SGD
£2,692 GBP
View
B
Retailer 10
-
$4,429 SGD
$3,464 USD
View
B
Retailer 11
-
$4,480 SGD
$3,504 USD
View
B
Retailer 12
-
$4,480 SGD
$3,504 USD
View
B
Retailer 13
-
$4,652 SGD
$3,639 USD
View
B
Retailer 14
-
$4,665 SGD
$3,649 USD
View
B+
Retailer 15
-
$4,682 SGD
£2,884 GBP
View
B
Retailer 16
-
$4,768 SGD
$3,730 USD
View
B
Retailer 17
-
$4,782 SGD
$3,741 USD
View
Retailer 18
-
$4,804 SGD
A$5,781 AUD
View
Price last confirmed 28 days ago
B
Retailer 19
-
$4,805 SGD
View
B
Retailer 20
-
$5,170 SGD
$4,044 USD
View
B
Retailer 21
-
$5,244 SGD
€3,907 EUR
View
B
Retailer 22
-
$5,507 SGD
ZAR 69,590 ZAR
View
B
Retailer 23
-
$6,498 SGD
$5,083 USD
View
B
Retailer 24
-
$6,680 SGD
$5,225 USD
View
B
Retailer 25
-
$7,493 SGD
£4,615 GBP
View
Most Expensive
B
NZ Jewellers
8dec82a7-74db-4caa-b783-4ae9c54930b4 · Oct 30
$7,805 SGD
$6,105 USD
View
25 more retailers have this diamond
Prices start from $3,453 SGDSave up to $4,352 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
1.30ct Oval
$3,453 SGD