Marquise|Natural|GIA

1.20ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 6545836244

Certificate GIA 6545836244

Diamond specifications and retailer prices

From $7,865 AUD
As of November 4, 2026
Save $6,275 AUD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,140 AUD at Wholesale Diamonds Direct · As of November 6, 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 G 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 6545836244. Listed at 12 retailers as of November 4, 2026, with prices from $7,865 to $14,140, a $6,275 spread on the same certified stone. Wholesale Diamonds Direct lists it at $14,140. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.6°
Pavilion angle38.4°
OriginNatural
Grading LabGIA
CertificateGIA 6545836244
Dimensions10.17 × 5.57 × 3.44 mm
L/W Ratio1.83
Top View
10.17 mm5.57 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545836244
Side View
Table 59.0%Crown 38.6°Girdle: THK-VTKPavilion 38.4°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $9,454 AUD|Low: $7,865 AUD|High: $12,231 AUD|Avg: $9,560 AUD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 5$7,865 AUD
Retailer 6$8,398 AUD
Retailer 7$9,392 AUD
Retailer 1$9,454 AUD
Retailer 4$9,546 AUD
Retailer 2$10,018 AUD
Retailer 3$12,147 AUD

46 data points across 7 retailers

12 retailers$7,865 AUD to $14,140 AUD

B+
Cheapest Retailer
-
$7,865 AUD
B
Retailer 2
-
$8,398 AUD
View
B
Retailer 3
-
$9,392 AUD
View
B
Retailer 4
-
$9,454 AUD
View
B
Retailer 5
-
$9,546 AUD
View
B
Retailer 6
-
$10,018 AUD
View
B
Retailer 7
-
$10,042 AUD
View
B
Retailer 8
-
$10,042 AUD
View
B
Retailer 9
-
$10,189 AUD
View
B
Retailer 10
-
$10,377 AUD
View
B
Retailer 11
-
$12,147 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
235881660 · Nov 6
$14,140 AUD
$9,715 USD
View
11 more retailers have this diamond
Prices start from $7,865 AUDSave up to $6,275 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.

B+
1.20ct Marquise
$7,865 AUD