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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 6552587571

Certificate GIA 6552587571

Diamond specifications and retailer prices

From $3,578 USD
As of November 6, 2026
Save $3,919 USD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,497 USD at NZ Jewellers · As of November 7, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552587571. Listed at 20 retailers as of November 6, 2026, with prices from $3,578 to $7,497, a $3,919 spread on the same certified stone. NZ Jewellers lists it at $7,497. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552587571
Dimensions10.22 × 5.56 × 3.54 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle, Cavity, Natural
Top View
10.22 mm5.56 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552587571
Side View
Table 57.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 63.7%

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 6
Current: $7,497 USD|Low: $2,982 USD|High: $7,497 USD|Avg: $4,440 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 7, 2026
Retailer 14$2,982 USD
Retailer 12$3,035 USD
Retailer 22$3,578 USD
Retailer 15$3,634 USD
Retailer 5$3,660 USD
Retailer 7$3,742 USD
Retailer 17$3,855 USD
Retailer 3$3,856 USD
Retailer 2$3,990 USD
Retailer 4$4,189 USD
Retailer 6$4,284 USD
Retailer 23$4,284 USD
Retailer 13$4,341 USD
Retailer 19$4,401 USD
Retailer 9$4,440 USD
Retailer 10$4,440 USD
Retailer 16$4,579 USD
Retailer 11$4,590 USD
Retailer 21$4,842 USD
Retailer 20$4,855 USD
Retailer 8$6,283 USD
Retailer 18$6,817 USD
NZ Jewellers$7,497 USD

21 data points across 23 retailers

20 retailers$3,578 USD to $7,497 USD

B+
Cheapest Retailer
-
$3,578 USD
B+
Retailer 2
-
$3,660 USD
View
B+
Retailer 3
-
$3,742 USD
View
B+
Retailer 4
-
$3,855 USD
View
B+
Retailer 5
-
$3,856 USD
View
B
Retailer 6
-
$3,990 USD
View
B
Retailer 7
-
$4,189 USD
View
B
Retailer 8
-
$4,256 USD
View
B+
Retailer 9
-
$4,284 USD
View
B+
Retailer 10
-
$4,284 USD
View
B
Retailer 11
-
$4,341 USD
View
B+
Retailer 12
-
$4,401 USD
View
B
Retailer 13
-
$4,440 USD
View
B
Retailer 14
-
$4,440 USD
View
B
Retailer 15
-
$4,590 USD
View
B
Retailer 16
-
$4,842 USD
View
B
Retailer 17
-
$4,855 USD
View
B
Retailer 18
-
$6,283 USD
View
B
Retailer 19
-
$6,817 USD
View
Most Expensive
C
NZ Jewellers
bd785850-ff6c-4e8a-a6e1-a5d77f3a21fe · Nov 7
$7,497 USD
View
19 more retailers have this diamond
Prices start from $3,578 USDSave up to $3,919 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
$3,578 USD