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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 6561320239

Certificate GIA 6561320239

Diamond specifications and retailer prices

From $4,003 NZD
As of November 6, 2026
Save $6,222 NZD (61%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $10,225 NZD at NZ Jewellers · As of November 5, 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 6561320239. Listed at 24 retailers as of November 5, 2026, with prices from $4,003 to $10,225, a $6,222 spread on the same certified stone. NZ Jewellers lists it at $10,225. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.6°
Pavilion angle36.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561320239
Dimensions8.51 × 5.84 × 3.63 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
Top View
8.51 mm5.84 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561320239
Side View
Table 60.0%Crown 39.6°Girdle: MED-THKPavilion 36.4°Culet: NoneDepth 62.1%

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: Nov 6
Current: $10,225 NZD|Low: $3,532 NZD|High: $10,423 NZD|Avg: $5,338 NZD|-1.9%
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
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
November 6, 2026
Retailer 10$3,532 NZD
Retailer 11$3,633 NZD
Retailer 2$4,003 NZD
Retailer 8$4,089 NZD
Retailer 15$4,158 NZD
Retailer 13$4,273 NZD
Retailer 26$4,402 NZD
Retailer 6$4,430 NZD
Retailer 12$4,439 NZD
Retailer 9$4,575 NZD
Retailer 22$4,744 NZD
Retailer 5$4,824 NZD
Retailer 20$4,890 NZD
Retailer 16$4,964 NZD
Retailer 19$5,080 NZD
Retailer 4$5,087 NZD
Retailer 7$5,087 NZD
Retailer 27$5,112 NZD
Retailer 25$5,175 NZD
Retailer 23$5,249 NZD
Retailer 14$5,358 NZD
Retailer 24$5,594 NZD
Retailer 17$5,695 NZD
Retailer 3$5,969 NZD
Retailer 21$5,984 NZD
Retailer 18$8,446 NZD
NZ Jewellers$10,225 NZD

17 data points across 27 retailers

24 retailers$4,003 NZD to $10,225 NZD

Retailer 1
-
$3,532 NZD
Price last confirmed 16 days ago
B+
Retailer 2
-
$4,003 NZD
View
B+
Retailer 3
-
$4,089 NZD
View
Final sale: no returns
Retailer 4
-
$4,158 NZD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$4,273 NZD
View
B+
Retailer 6
-
$4,402 NZD
View
B+
Retailer 7
-
$4,430 NZD
View
B
Retailer 8
-
$4,744 NZD
View
B+
Retailer 9
-
$4,824 NZD
View
Retailer 10
-
$4,890 NZD
View
Price last confirmed 22 days ago
Retailer 11
-
$4,964 NZD
View
Price last confirmed 17 days ago
Retailer 12
-
$5,080 NZD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$5,087 NZD
View
B+
Retailer 14
-
$5,087 NZD
View
B+
Retailer 15
-
$5,112 NZD
View
B+
Retailer 16
-
$5,175 NZD
View
B
Retailer 17
-
$5,249 NZD
View
Retailer 18
-
$5,358 NZD
View
Price last confirmed 17 days ago
Retailer 19
-
$5,585 NZD
View
Price last confirmed 31 days ago
B
Retailer 20
-
$5,594 NZD
View
B
Retailer 21
-
$5,969 NZD
View
B
Retailer 22
-
$5,984 NZD
View
Retailer 23
-
$8,446 NZD
View
Price last confirmed 19 days ago
Most Expensive
B
NZ Jewellers
71dc73bd-4697-4f3d-a570-6e29cd97fb4f · Nov 5
$10,225 NZD
$5,668 USD
View
23 more retailers have this diamond
Prices start from $4,003 NZDSave up to $6,222 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.

B+
1.20ct Oval
$4,003 NZD