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Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 7551283807

Certificate GIA 7551283807

Diamond specifications and retailer prices

From $2,886 NZD
As of November 6, 2026
Save $5,296 NZD (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,956 NZD at NZ Jewellers · As of September 14, 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 7551283807. Listed at 13 retailers as of November 5, 2026, with a 184% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551283807
Dimensions8.23 × 5.88 × 3.71 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather
Top View
8.23 mm5.88 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551283807
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 63.2%

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: $8,182 NZD|Low: $2,886 NZD|High: $8,801 NZD|Avg: $4,720 NZD|-7.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$2,886 NZD
Retailer 10$3,718 NZD
Retailer 9$3,914 NZD
Retailer 3$3,954 NZD
Retailer 2$3,999 NZD
Retailer 7$4,095 NZD
Retailer 6$4,102 NZD
Retailer 11$4,652 NZD
Retailer 4$4,883 NZD
Retailer 5$6,837 NZD
NZ Jewellers$8,182 NZD

42 data points across 11 retailers

13 retailers$2,886 NZD to $8,182 NZD

A
Cheapest Retailer
-
$2,886 NZD
A
Retailer 2
-
$3,718 NZD
View
A
Retailer 3
-
$3,914 NZD
View
A
Retailer 4
-
$3,954 NZD
View
Final sale: no returns
A
Retailer 5
-
$3,999 NZD
View
A
Retailer 6
-
$4,095 NZD
View
Retailer 7
-
$4,102 NZD
View
Price last confirmed 3 days ago
Retailer 8
-
$4,284 NZD
View
Price last confirmed 54 days ago
B+
Retailer 9
-
$4,652 NZD
View
B+
Retailer 10
-
$4,883 NZD
View
B+
Retailer 11
-
$6,837 NZD
View
B
Retailer 12
-
$8,182 NZD
View
Most Expensive
NZ Jewellers
c6fedaf0-5d0b-43d5-9dfa-53d55f288573 · Sep 14
$8,956 NZD
$4,965 USD
View
Price last confirmed 53 days ago
12 more retailers have this diamond
Prices start from $2,886 NZDSave up to $5,296 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
$2,886 NZD