Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

ID • I/SI1 • GIA 6521715530

Certificate GIA 6521715530

Diamond specifications and retailer prices

From $4,317 NZD
As of November 6, 2026
Save $5,477 NZD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,793 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 6521715530. Listed at 21 retailers as of November 5, 2026, with prices from $4,317 to $9,793, a $5,477 spread on the same certified stone. NZ Jewellers lists it at $9,793. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521715530
Dimensions8.25 × 5.99 × 3.75 mm
L/W Ratio1.38
Top View
8.25 mm5.99 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521715530
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.6%

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: $9,793 NZD|Low: $4,317 NZD|High: $9,967 NZD|Avg: $6,373 NZD|-1.7%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 8$4,317 NZD
Retailer 2$4,486 NZD
Retailer 6$5,152 NZD
Retailer 17$5,177 NZD
Retailer 10$5,188 NZD
Retailer 19$5,412 NZD
Retailer 13$5,453 NZD
Retailer 5$5,621 NZD
Retailer 11$5,720 NZD
Retailer 15$5,781 NZD
Retailer 20$5,837 NZD
Retailer 4$5,879 NZD
Retailer 14$6,014 NZD
Retailer 7$6,079 NZD
Retailer 9$6,487 NZD
Retailer 3$6,579 NZD
Retailer 12$6,590 NZD
Retailer 16$6,860 NZD
Retailer 18$9,377 NZD
NZ Jewellers$9,793 NZD

22 data points across 20 retailers

21 retailers$4,317 NZD to $9,793 NZD

A
Cheapest Retailer
-
$4,317 NZD
A
Retailer 2
-
$4,486 NZD
View
B+
Retailer 3
-
$5,152 NZD
View
B+
Retailer 4
-
$5,177 NZD
View
B+
Retailer 5
-
$5,188 NZD
View
Final sale: no returns
B+
Retailer 6
-
$5,412 NZD
View
B+
Retailer 7
-
$5,450 NZD
View
B+
Retailer 8
-
$5,453 NZD
View
B+
Retailer 9
-
$5,621 NZD
View
Retailer 10
-
$5,720 NZD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$5,781 NZD
View
B+
Retailer 12
-
$5,837 NZD
View
B+
Retailer 13
-
$5,879 NZD
View
B+
Retailer 14
-
$6,014 NZD
View
B+
Retailer 15
-
$6,079 NZD
View
Retailer 16
-
$6,186 NZD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
$6,487 NZD
View
B+
Retailer 18
-
$6,579 NZD
View
B+
Retailer 19
-
$6,860 NZD
View
B
Retailer 20
-
$9,377 NZD
View
Most Expensive
B
NZ Jewellers
4acfd102-0c1c-4864-8d6f-9646c81ca9b4 · Nov 5
$9,793 NZD
$5,429 USD
View
20 more retailers have this diamond
Prices start from $4,317 NZDSave up to $5,477 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
$4,317 NZD