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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6233809481

Certificate GIA 6233809481

Diamond specifications and retailer prices

From $3,094 NZD
As of November 6, 2026
Save $4,071 NZD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,673 NZD at NZ Jewellers · As of September 25, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6233809481. Listed at 20 retailers as of November 4, 2026, with a 132% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 6233809481
Dimensions8.57 × 6.07 × 3.64 mm
L/W Ratio1.41
Top View
8.57 mm6.07 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233809481
Side View
Table 61.0%CrownGirdle: MED-THKPavilion 40.1°Culet: NoneDepth 59.9%

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 6
Current: $6,249 NZD|Low: $2,892 NZD|High: $7,355 NZD|Avg: $4,327 NZD
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
November 6, 2026
Retailer 15$3,094 NZD
Retailer 7$3,384 NZD
Retailer 2$3,391 NZD
Retailer 3$3,429 NZD
Retailer 17$3,581 NZD
Retailer 4$3,624 NZD
Retailer 6$3,657 NZD
Retailer 9$3,922 NZD
Retailer 8$3,987 NZD
Retailer 10$4,037 NZD
Retailer 16$4,214 NZD
Retailer 12$4,466 NZD
Retailer 11$5,006 NZD
Retailer 5$5,044 NZD
Retailer 14$5,085 NZD
Retailer 1$6,249 NZD
Retailer 13$7,165 NZD

39 data points across 17 retailers

20 retailers$3,094 NZD to $7,165 NZD

A
Cheapest Retailer
-
$3,094 NZD
A
Retailer 2
-
$3,384 NZD
View
A
Retailer 3
-
$3,391 NZD
View
B+
Retailer 4
-
$3,429 NZD
View
Final sale: no returns
A
Retailer 5
-
$3,581 NZD
View
B+
Retailer 6
-
$3,624 NZD
View
B+
Retailer 7
-
$3,657 NZD
View
B+
Retailer 8
-
$3,922 NZD
View
B+
Retailer 9
-
$3,987 NZD
View
B+
Retailer 10
-
$4,037 NZD
View
B+
Retailer 11
-
$4,214 NZD
View
Retailer 12
-
$4,214 NZD
View
Price last confirmed 17 days ago
Retailer 13
-
$4,263 NZD
View
Price last confirmed 45 days ago
B+
Retailer 14
-
$4,466 NZD
View
B+
Retailer 15
-
$5,006 NZD
View
Retailer 16
-
$5,044 NZD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$5,085 NZD
View
B
Retailer 18
-
$6,249 NZD
View
B
Retailer 19
-
$7,165 NZD
View
Most Expensive
NZ Jewellers
6e9e7afd-638a-4393-b1f4-e16b02e56af2 · Sep 25
$8,673 NZD
$4,808 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from $3,094 NZDSave up to $4,071 NZD

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
$3,094 NZD