Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6555703280

Certificate GIA 6555703280

Diamond specifications and retailer prices

From $3,146 USD
₹299,603 INR
As of November 1, 2026
Save $4,143 USD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,289 USD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555703280. Listed at 23 retailers as of October 30, 2026, with prices from $3,146 to $7,289, a $4,143 spread on the same certified stone. NZ Jewellers lists it at $7,289. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555703280
Dimensions10.70 × 5.36 × 3.42 mm
L/W Ratio2.00
Top View
10.70 mm5.36 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555703280
Side View
Table 58.0%CrownGirdle: STK-XTKPavilionCulet: NoneDepth 63.9%

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 1
Current: $7,289 USD|Low: $3,146 USD|High: $7,289 USD|Avg: $4,431 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
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Retailer 22
Retailer 23
November 2, 2026
Retailer 18$3,146 USD
Retailer 9$3,572 USD
Retailer 7$3,682 USD
Retailer 12$3,710 USD
Retailer 3$3,745 USD
Retailer 15$3,831 USD
Retailer 6$3,862 USD
Retailer 8$3,980 USD
Retailer 2$4,081 USD
Retailer 21$4,184 USD
Retailer 22$4,184 USD
Retailer 23$4,184 USD
Retailer 17$4,244 USD
Retailer 11$4,332 USD
Retailer 14$4,439 USD
Retailer 10$4,486 USD
Retailer 16$4,537 USD
Retailer 13$4,734 USD
Retailer 4$4,827 USD
Retailer 20$5,143 USD
Retailer 5$6,048 USD
Retailer 19$6,996 USD
NZ Jewellers$7,289 USD

23 data points across 23 retailers

23 retailers$3,146 USD to $7,289 USD

B+
Cheapest Retailer
-
$3,146 USD
₹299,603 INR
B
Retailer 2
-
$3,572 USD
View
B
Retailer 3
-
$3,682 USD
View
B
Retailer 4
-
$3,710 USD
View
B
Retailer 5
-
$3,745 USD
View
B
Retailer 6
-
$3,831 USD
View
B
Retailer 7
-
$3,862 USD
View
Final sale: no returns
B
Retailer 8
-
$3,980 USD
View
B
Retailer 9
-
$4,081 USD
£3,213 GBP
View
B
Retailer 10
-
$4,184 USD
View
B
Retailer 11
-
$4,184 USD
View
B
Retailer 12
-
$4,184 USD
View
B
Retailer 13
-
$4,244 USD
£3,342 GBP
View
B
Retailer 14
-
$4,332 USD
View
B
Retailer 15
-
$4,439 USD
View
Retailer 16
-
$4,486 USD
A$6,901 AUD
View
Price last confirmed 29 days ago
B
Retailer 17
-
$4,537 USD
View
B
Retailer 18
-
$4,734 USD
€4,509 EUR
View
B
Retailer 19
-
$4,827 USD
View
B
Retailer 20
-
$5,143 USD
ZAR 83,079 ZAR
View
B
Retailer 21
-
$6,048 USD
View
B
Retailer 22
-
$6,996 USD
£5,509 GBP
View
Most Expensive
B
NZ Jewellers
ac532a44-bd7d-45e3-ad64-4a41ba6839dc · Oct 30
$7,289 USD
View
22 more retailers have this diamond
Prices start from $3,146 USDSave up to $4,143 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
$3,146 USD