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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 $4,904 USD
As of November 4, 2026
Save $5,477 USD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,381 USD 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 $4,904 to $10,381, a $5,477 spread on the same certified stone. NZ Jewellers lists it at $10,381. 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
Color
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: $10,381 USD|Low: $4,189 USD|High: $10,381 USD|Avg: $6,294 USD
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$4,189 USD
Retailer 9$4,904 USD
Retailer 7$4,939 USD
Retailer 17$4,940 USD
Retailer 6$5,234 USD
Retailer 11$5,554 USD
Retailer 19$5,603 USD
Retailer 5$5,623 USD
Retailer 8$5,623 USD
Retailer 18$5,623 USD
Retailer 15$5,896 USD
Retailer 20$5,909 USD
Retailer 2$6,103 USD
Retailer 14$6,352 USD
Retailer 4$6,488 USD
Retailer 21$6,565 USD
Retailer 13$6,745 USD
Retailer 10$6,844 USD
Retailer 3$9,084 USD
Retailer 16$9,119 USD
NZ Jewellers$10,381 USD

28 data points across 21 retailers

19 retailers$4,904 USD to $10,381 USD

B+
Cheapest Retailer
-
$4,904 USD
B+
Retailer 2
-
$4,939 USD
View
B+
Retailer 3
-
$4,940 USD
View
B+
Retailer 4
-
$5,234 USD
View
B+
Retailer 5
-
$5,554 USD
View
B+
Retailer 6
-
$5,603 USD
View
B+
Retailer 7
-
$5,623 USD
View
B+
Retailer 8
-
$5,623 USD
View
Retailer 9
-
$5,623 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$5,896 USD
View
B+
Retailer 11
-
$5,909 USD
View
B+
Retailer 12
-
$6,103 USD
View
B
Retailer 13
-
$6,488 USD
View
B
Retailer 14
-
$6,565 USD
View
B
Retailer 15
-
$6,745 USD
View
Retailer 16
-
$6,844 USD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$9,084 USD
View
B
Retailer 18
-
$9,119 USD
View
Most Expensive
B
NZ Jewellers
c70d2820-4ca9-43c3-b1ea-2835b270fb99 · Nov 5
$10,381 USD
View
18 more retailers have this diamond
Prices start from $4,904 USDSave up to $5,477 USD

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
$4,904 USD