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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2566588407

Certificate GIA 2566588407

Diamond specifications and retailer prices

From $7,321 AUD
As of November 5, 2026
Save $5,743 AUD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,064 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566588407. Listed at 15 retailers as of November 5, 2026, with prices from $7,321 to $13,064, a $5,743 spread on the same certified stone. Wholesale Diamonds Direct lists it at $13,064. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.73°
Pavilion angle39.25°
OriginNatural
Grading LabGIA
CertificateGIA 2566588407
Dimensions10.89 × 5.44 × 3.36 mm
L/W Ratio2.00
Culet sizeNone
Top View
10.89 mm5.44 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566588407
Side View
Table 57.0%Crown 39.73°Girdle: MED-THKPavilion 39.25°Culet: NDepth 61.7%

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 5
Current: $10,207 AUD|Low: $7,321 AUD|High: $13,064 AUD|Avg: $9,305 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 6, 2026
Retailer 9$7,321 AUD
Retailer 13$7,401 AUD
Retailer 4$7,618 AUD
Retailer 2$7,765 AUD
Retailer 12$7,794 AUD
Retailer 8$8,029 AUD
Retailer 7$8,224 AUD
Retailer 6$9,130 AUD
Retailer 5$9,143 AUD
Retailer 11$9,172 AUD
Retailer 1$10,207 AUD
Retailer 10$12,409 AUD
Retailer 3$12,694 AUD
Wholesale Diamonds Direct$13,064 AUD

22 data points across 14 retailers

15 retailers$7,321 AUD to $13,064 AUD

B+
Cheapest Retailer
-
$7,321 AUD
B+
Retailer 2
-
$7,401 AUD
View
Retailer 3
-
$7,494 AUD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$7,618 AUD
View
B+
Retailer 5
-
$7,765 AUD
View
B+
Retailer 6
-
$7,794 AUD
View
B
Retailer 7
-
$8,029 AUD
View
B+
Retailer 8
-
$8,224 AUD
View
B
Retailer 9
-
$9,130 AUD
View
B
Retailer 10
-
$9,143 AUD
View
B
Retailer 11
-
$9,172 AUD
View
B
Retailer 12
-
$10,207 AUD
View
B
Retailer 13
-
$12,409 AUD
View
B
Retailer 14
-
$12,694 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
661914535 · Nov 6
$13,064 AUD
$8,976 USD
View
14 more retailers have this diamond
Prices start from $7,321 AUDSave up to $5,743 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
$7,321 AUD