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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 5513406278

Certificate GIA 5513406278

Diamond specifications and retailer prices

From $3,652 SGD
$2,857 USD
As of October 30, 2026
Save $4,260 SGD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,912 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5513406278. Listed at 23 retailers as of October 30, 2026, with prices from $3,652 to $7,912, a $4,260 spread on the same certified stone. NZ Jewellers lists it at $7,912. 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

1.20
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.97°
Pavilion angle39.42°
OriginNatural
Grading LabGIA
CertificateGIA 5513406278
Dimensions8.00 × 5.85 × 3.72 mm
L/W Ratio1.37
Top View
8.00 mm5.85 mm1.20 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5513406278
Side View
Table 61.0%Crown 41.97°Girdle: STK-VTKPavilion 39.42°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $7,912 SGD|Low: $3,727 SGD|High: $7,912 SGD|Avg: $5,087 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 10$3,727 SGD
Retailer 11$3,798 SGD
Retailer 5$4,115 SGD
Retailer 13$4,272 SGD
Retailer 8$4,444 SGD
Retailer 3$4,609 SGD
Retailer 6$4,747 SGD
Retailer 4$4,748 SGD
Retailer 12$4,865 SGD
Retailer 7$5,318 SGD
Retailer 2$5,583 SGD
Retailer 9$7,636 SGD
NZ Jewellers$7,912 SGD

35 data points across 13 retailers

23 retailers$3,652 SGD to $7,912 SGD

B+
Cheapest Retailer
-
$3,652 SGD
$2,857 USD
B+
Retailer 2
-
$3,727 SGD
$2,915 USD
View
B
Retailer 3
-
$3,798 SGD
$2,971 USD
View
Final sale: no returns
B
Retailer 4
-
$3,865 SGD
$3,023 USD
View
B
Retailer 5
-
$3,989 SGD
$3,120 USD
View
B
Retailer 6
-
$4,115 SGD
$3,219 USD
View
B
Retailer 7
-
$4,115 SGD
$3,219 USD
View
B
Retailer 8
-
$4,137 SGD
$3,236 USD
View
B
Retailer 9
-
$4,205 SGD
$3,289 USD
View
B
Retailer 10
-
$4,272 SGD
$3,342 USD
View
B
Retailer 11
-
$4,444 SGD
£2,737 GBP
View
B
Retailer 12
-
$4,609 SGD
$3,605 USD
View
B
Retailer 13
-
$4,666 SGD
$3,650 USD
View
B
Retailer 14
-
$4,747 SGD
£2,924 GBP
View
B
Retailer 15
-
$4,748 SGD
$3,714 USD
View
Retailer 16
-
$4,865 SGD
A$5,855 AUD
View
Price last confirmed 23 days ago
B
Retailer 17
-
$4,871 SGD
$3,810 USD
View
B
Retailer 18
-
$4,871 SGD
$3,810 USD
View
B
Retailer 19
-
$5,037 SGD
$3,940 USD
View
B
Retailer 20
-
$5,318 SGD
€3,962 EUR
View
B
Retailer 21
-
$5,583 SGD
ZAR 70,547 ZAR
View
B
Retailer 22
-
$7,636 SGD
£4,703 GBP
View
Most Expensive
C
NZ Jewellers
15877913-03e3-4cdb-8fe0-3ea91c309bcc · Oct 30
$7,912 SGD
$6,189 USD
View
22 more retailers have this diamond
Prices start from $3,652 SGDSave up to $4,260 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.

B+
1.20ct Oval
$3,652 SGD