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Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6552321194

Certificate GIA 6552321194

Diamond specifications and retailer prices

From $3,333 AUD
As of November 5, 2026
Save $3,311 AUD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,644 AUD at Wholesale Diamonds Direct · As of November 4, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552321194. Listed at 11 retailers as of November 4, 2026, with prices from $3,333 to $6,644, a $3,311 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,644. 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
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle39.29°
Pavilion angle38.47°
OriginNatural
Grading LabGIA
CertificateGIA 6552321194
Dimensions10.46 × 5.53 × 3.40 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.46 mm5.53 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552321194
Side View
Table 59.0%Crown 39.29°Girdle: THN-THKPavilion 38.47°Culet: NoneDepth 61.5%

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: $3,333 AUD|Low: $3,314 AUD|High: $7,616 AUD|Avg: $5,101 AUD|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$3,333 AUD
Retailer 2$4,081 AUD
Retailer 9$4,093 AUD
Retailer 7$4,442 AUD
Retailer 5$4,765 AUD
Retailer 8$4,823 AUD
Retailer 6$4,909 AUD
Retailer 4$4,921 AUD
Retailer 3$6,220 AUD
Wholesale Diamonds Direct$6,644 AUD

32 data points across 10 retailers

11 retailers$3,333 AUD to $6,644 AUD

A
Cheapest Retailer
-
$3,333 AUD
A
Retailer 2
-
$4,081 AUD
View
A
Retailer 3
-
$4,093 AUD
View
A
Retailer 4
-
$4,442 AUD
View
B+
Retailer 5
-
$4,765 AUD
View
B+
Retailer 6
-
$4,823 AUD
View
B+
Retailer 7
-
$4,909 AUD
View
B+
Retailer 8
-
$4,921 AUD
View
B+
Retailer 9
-
$5,557 AUD
View
B+
Retailer 10
-
$6,220 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
643534585 · Nov 4
$6,644 AUD
$4,565 USD
View
10 more retailers have this diamond
Prices start from $3,333 AUDSave up to $3,311 AUD

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
$3,333 AUD