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Oval|Natural|GIA

1.20ct G SI2 Oval Natural Diamond

ID • G/SI2 • GIA 1236692018

Certificate GIA 1236692018

Diamond specifications and retailer prices

From $4,225 NZD
As of November 6, 2026
Save $4,926 NZD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,802 NZD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1236692018. Listed at 18 retailers as of November 4, 2026, with a 117% 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236692018
Dimensions8.53 × 6.05 × 3.74 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
8.53 mm6.05 mm1.20 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236692018
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.9%

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: $10,802 NZD|Low: $4,225 NZD|High: $10,836 NZD|Avg: $6,296 NZD|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$4,225 NZD
Retailer 2$4,383 NZD
Retailer 6$5,013 NZD
Retailer 3$5,065 NZD
Retailer 10$5,745 NZD
Retailer 5$5,776 NZD
Retailer 4$5,868 NZD
Retailer 8$5,953 NZD
Retailer 11$6,424 NZD
Retailer 7$9,151 NZD
Queensmith$10,802 NZD

30 data points across 11 retailers

18 retailers$4,225 NZD to $9,151 NZD

A
Cheapest Retailer
-
$4,225 NZD
A
Retailer 2
-
$4,383 NZD
View
A
Retailer 3
-
$5,013 NZD
View
A
Retailer 4
-
$5,065 NZD
View
Final sale: no returns
A
Retailer 5
-
$5,276 NZD
View
Retailer 6
-
$5,538 NZD
View
Price last confirmed 19 days ago
Retailer 7
-
$5,538 NZD
View
Price last confirmed 21 days ago
Retailer 8
-
$5,590 NZD
View
Price last confirmed 39 days ago
B+
Retailer 9
-
$5,745 NZD
View
B+
Retailer 10
-
$5,776 NZD
View
B+
Retailer 11
-
$5,778 NZD
View
B+
Retailer 12
-
$5,868 NZD
View
B+
Retailer 13
-
$5,953 NZD
View
B+
Retailer 14
-
$6,424 NZD
View
Retailer 15
-
$6,451 NZD
View
Price last confirmed 38 days ago
B
Retailer 16
-
$9,151 NZD
View
Retailer 17
-
$9,739 NZD
View
Price last confirmed 37 days ago
Most Expensive
Queensmith
1236692018 · Oct 28
$10,802 NZD
£4,715 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $4,225 NZDSave up to $4,926 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
$4,225 NZD