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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2566156667

Certificate GIA 2566156667

Diamond specifications and retailer prices

From $4,405 NZD
As of November 5, 2026
Save $3,320 NZD (43%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,725 NZD at Wholesale Diamonds Direct · As of November 3, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded I 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 2566156667. Listed at 10 retailers as of November 3, 2026, with prices from $4,405 to $7,725, a $3,320 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,725. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle37.99°
Pavilion angle37.89°
OriginNatural
Grading LabGIA
CertificateGIA 2566156667
Dimensions10.60 × 5.54 × 3.31 mm
L/W Ratio1.91
Culet sizeNone
Top View
10.60 mm5.54 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2566156667
Side View
Table 61.0%Crown 37.99°Girdle: VTN-THKPavilion 37.89°Culet: NoneDepth 59.8%

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 5
Current: $7,288 NZD|Low: $4,380 NZD|High: $8,191 NZD|Avg: $5,709 NZD|+19.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$4,405 NZD
Retailer 5$4,678 NZD
Retailer 9$5,049 NZD
Retailer 4$5,138 NZD
Retailer 8$5,181 NZD
Retailer 6$5,628 NZD
Retailer 7$5,772 NZD
Retailer 3$5,967 NZD
Retailer 1$7,288 NZD
Wholesale Diamonds Direct$7,725 NZD

34 data points across 10 retailers

10 retailers$4,405 NZD to $7,725 NZD

A
Cheapest Retailer
-
$4,405 NZD
A
Retailer 2
-
$4,678 NZD
View
B+
Retailer 3
-
$5,049 NZD
View
A
Retailer 4
-
$5,138 NZD
View
A
Retailer 5
-
$5,181 NZD
View
B+
Retailer 6
-
$5,628 NZD
View
B+
Retailer 7
-
$5,772 NZD
View
B+
Retailer 8
-
$5,967 NZD
View
B
Retailer 9
-
$7,288 NZD
View
Most Expensive
B
Wholesale Diamonds Direct
348918947 · Nov 3
$7,725 NZD
$4,282 USD
View
9 more retailers have this diamond
Prices start from $4,405 NZDSave up to $3,320 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 Marquise
$4,405 NZD