Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

ID • I/SI1 • GIA 6541152972

Certificate GIA 6541152972

Diamond specifications and retailer prices

From $4,477 NZD
As of November 6, 2026
Save $5,644 NZD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $10,122 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 I 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 6541152972. Listed at 25 retailers as of November 5, 2026, with prices from $4,477 to $10,122, a $5,644 spread on the same certified stone. NZ Jewellers lists it at $10,122. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.43°
Pavilion angle35.92°
OriginNatural
Grading LabGIA
CertificateGIA 6541152972
Dimensions8.12 × 5.80 × 3.69 mm
L/W Ratio1.40
Top View
8.12 mm5.80 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541152972
Side View
Table 63.0%Crown 41.43°Girdle: THK-VTKPavilion 35.92°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 6
Current: $6,011 NZD|Low: $4,477 NZD|High: $9,820 NZD|Avg: $6,182 NZD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 2$4,477 NZD
Retailer 8$4,503 NZD
Retailer 5$5,132 NZD
Retailer 9$5,588 NZD
Retailer 3$5,635 NZD
Retailer 1$6,011 NZD
Retailer 7$6,799 NZD
Retailer 4$7,091 NZD
Retailer 6$9,691 NZD

27 data points across 9 retailers

25 retailers$4,477 NZD to $10,122 NZD

A
Cheapest Retailer
-
$4,477 NZD
A
Retailer 2
-
$4,503 NZD
View
B+
Retailer 3
-
$4,961 NZD
View
B+
Retailer 4
-
$5,132 NZD
View
B+
Retailer 5
-
$5,157 NZD
View
B+
Retailer 6
-
$5,361 NZD
View
Final sale: no returns
B+
Retailer 7
-
$5,588 NZD
View
B+
Retailer 8
-
$5,628 NZD
View
B+
Retailer 9
-
$5,635 NZD
View
B+
Retailer 10
-
$5,760 NZD
View
B+
Retailer 11
-
$5,810 NZD
View
Retailer 12
-
$5,810 NZD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$6,011 NZD
View
B+
Retailer 14
-
$6,034 NZD
View
B+
Retailer 15
-
$6,068 NZD
View
Retailer 16
-
$6,229 NZD
View
Price last confirmed 34 days ago
B
Retailer 17
-
$6,247 NZD
View
B
Retailer 18
-
$6,260 NZD
View
B+
Retailer 19
-
$6,703 NZD
View
B+
Retailer 20
-
$6,799 NZD
View
B+
Retailer 21
-
$7,091 NZD
View
B
Retailer 22
-
$8,449 NZD
View
B
Retailer 23
-
$8,686 NZD
View
B
Retailer 24
-
$9,691 NZD
View
Most Expensive
B
NZ Jewellers
8faaa497-440b-47f0-80c3-a48d16237cf2 · Nov 5
$10,122 NZD
$5,611 USD
View
24 more retailers have this diamond
Prices start from $4,477 NZDSave up to $5,644 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
$4,477 NZD