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Marquise|Natural|GIA

1.20ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 6551655701

Certificate GIA 6551655701

Diamond specifications and retailer prices

From $7,005 AUD
As of November 4, 2026
Save $7,824 AUD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,829 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551655701. Listed at 19 retailers as of November 4, 2026, with prices from $7,005 to $14,829, a $7,824 spread on the same certified stone. NZ Jewellers lists it at $14,829. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551655701
Dimensions10.42 × 5.53 × 3.45 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
10.42 mm5.53 mm1.20 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551655701
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.4%

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: $14,829 AUD|Low: $5,984 AUD|High: $14,829 AUD|Avg: $8,991 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 12$5,984 AUD
Retailer 9$7,005 AUD
Retailer 7$7,055 AUD
Retailer 17$7,057 AUD
Retailer 6$7,477 AUD
Retailer 11$7,934 AUD
Retailer 19$8,004 AUD
Retailer 5$8,032 AUD
Retailer 8$8,032 AUD
Retailer 18$8,032 AUD
Retailer 15$8,422 AUD
Retailer 20$8,441 AUD
Retailer 2$8,718 AUD
Retailer 14$9,074 AUD
Retailer 4$9,268 AUD
Retailer 21$9,378 AUD
Retailer 13$9,635 AUD
Retailer 10$9,777 AUD
Retailer 3$12,976 AUD
Retailer 16$13,026 AUD
NZ Jewellers$14,829 AUD

28 data points across 21 retailers

19 retailers$7,005 AUD to $14,829 AUD

B+
Cheapest Retailer
-
$7,005 AUD
B+
Retailer 2
-
$7,055 AUD
View
B+
Retailer 3
-
$7,057 AUD
View
B+
Retailer 4
-
$7,477 AUD
View
B+
Retailer 5
-
$7,934 AUD
View
B+
Retailer 6
-
$8,004 AUD
View
B+
Retailer 7
-
$8,032 AUD
View
B+
Retailer 8
-
$8,032 AUD
View
Retailer 9
-
$8,032 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$8,422 AUD
View
B+
Retailer 11
-
$8,441 AUD
View
B+
Retailer 12
-
$8,718 AUD
View
B
Retailer 13
-
$9,268 AUD
View
B
Retailer 14
-
$9,378 AUD
View
B
Retailer 15
-
$9,635 AUD
View
Retailer 16
-
$9,777 AUD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$12,976 AUD
View
B
Retailer 18
-
$13,026 AUD
View
Most Expensive
B
NZ Jewellers
c70d2820-4ca9-43c3-b1ea-2835b270fb99 · Nov 5
$14,829 AUD
$10,381 USD
View
18 more retailers have this diamond
Prices start from $7,005 AUDSave up to $7,824 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
$7,005 AUD