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Oval|Natural|GIA

1.20ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 5426502642

Certificate GIA 5426502642

Diamond specifications and retailer prices

From $1,651 USD
HK$12,900 HKD
As of November 1, 2026
Save $2,981 USD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,632 USD 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5426502642. Listed at 17 retailers as of October 30, 2026, with prices from $1,651 to $4,632, a $2,981 spread on the same certified stone. NZ Jewellers lists it at $4,632. 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

1.20
Carat
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5426502642
Dimensions8.25 × 5.58 × 3.92 mm
L/W Ratio1.48
Top View
8.25 mm5.58 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5426502642
Side View
Table 60.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 70.3%

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: $4,632 USD|Low: $1,626 USD|High: $4,665 USD|Avg: $2,522 USD|-0.7%
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
Retailer 14
Retailer 15
November 1, 2026
Retailer 10$1,651 USD
Retailer 6$1,960 USD
Retailer 7$2,011 USD
Retailer 15$2,045 USD
Retailer 12$2,216 USD
Retailer 14$2,216 USD
Retailer 2$2,220 USD
Retailer 4$2,290 USD
Retailer 5$2,318 USD
Retailer 13$2,355 USD
Retailer 9$2,431 USD
Retailer 3$2,557 USD
Retailer 11$2,768 USD
Retailer 8$3,882 USD
NZ Jewellers$4,632 USD

27 data points across 15 retailers

17 retailers$1,651 USD to $4,632 USD

A
Cheapest Retailer
-
$1,651 USD
HK$12,900 HKD
B+
Retailer 2
-
$1,960 USD
View
B+
Retailer 3
-
$2,011 USD
View
B+
Retailer 4
-
$2,045 USD
View
Final sale: no returns
Retailer 5
-
$2,186 USD
View
Price last confirmed 111 days ago
B+
Retailer 6
-
$2,202 USD
A$3,388 AUD
View
B+
Retailer 7
-
$2,216 USD
View
B+
Retailer 8
-
$2,216 USD
View
B+
Retailer 9
-
$2,220 USD
£1,748 GBP
View
B+
Retailer 10
-
$2,290 USD
SGD 3,094 SGD
View
B+
Retailer 11
-
$2,318 USD
View
B+
Retailer 12
-
$2,355 USD
View
B+
Retailer 13
-
$2,431 USD
£1,915 GBP
View
B
Retailer 14
-
$2,557 USD
View
B+
Retailer 15
-
$2,768 USD
€2,636 EUR
View
B
Retailer 16
-
$3,882 USD
£3,057 GBP
View
Most Expensive
B
NZ Jewellers
6b445b4d-fc17-40f2-a953-984a79f3d77b · Oct 30
$4,632 USD
View
16 more retailers have this diamond
Prices start from $1,651 USDSave up to $2,981 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
1.20ct Oval
$1,651 USD