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Marquise|Natural|GIA

1.20ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564577837

Certificate GIA 2564577837

Diamond specifications and retailer prices

From $7,598 AUD
As of November 4, 2026
Save $6,186 AUD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,784 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 E 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 2564577837. Listed at 14 retailers as of November 4, 2026, with prices from $7,598 to $13,784, a $6,186 spread on the same certified stone. Wholesale Diamonds Direct lists it at $13,784. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.64°
Pavilion angle37.65°
OriginNatural
Grading LabGIA
CertificateGIA 2564577837
Dimensions11.38 × 5.55 × 3.23 mm
L/W Ratio2.05
Culet sizeNone
Top View
11.38 mm5.55 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564577837
Side View
Table 60.0%Crown 36.64°Girdle: THN-THKPavilion 37.65°Culet: NDepth 58.3%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $9,637 AUD|Low: $7,598 AUD|High: $13,784 AUD|Avg: $9,556 AUD|+0.1%
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 8$7,598 AUD
Retailer 5$7,725 AUD
Retailer 12$7,807 AUD
Retailer 7$7,952 AUD
Retailer 3$8,038 AUD
Retailer 13$8,142 AUD
Retailer 11$8,222 AUD
Retailer 6$8,585 AUD
Retailer 4$9,600 AUD
Retailer 1$9,637 AUD
Retailer 10$9,644 AUD
Retailer 2$12,469 AUD
Retailer 9$13,092 AUD
Wholesale Diamonds Direct$13,784 AUD

21 data points across 14 retailers

14 retailers$7,598 AUD to $13,784 AUD

B+
Cheapest Retailer
-
$7,598 AUD
B+
Retailer 2
-
$7,725 AUD
View
B+
Retailer 3
-
$7,807 AUD
View
B+
Retailer 4
-
$7,952 AUD
View
B+
Retailer 5
-
$8,038 AUD
View
B+
Retailer 6
-
$8,142 AUD
View
B+
Retailer 7
-
$8,222 AUD
View
B+
Retailer 8
-
$8,585 AUD
View
B
Retailer 9
-
$9,600 AUD
View
B
Retailer 10
-
$9,637 AUD
View
B
Retailer 11
-
$9,644 AUD
View
B
Retailer 12
-
$12,469 AUD
View
B
Retailer 13
-
$13,092 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
661914510 · Nov 4
$13,784 AUD
$9,649 USD
View
13 more retailers have this diamond
Prices start from $7,598 AUDSave up to $6,186 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
$7,598 AUD