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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6555703280

Certificate GIA 6555703280

Diamond specifications and retailer prices

From €2,793 EUR
As of November 6, 2026
Save €3,736 EUR (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €6,528 EUR 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 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 November 5, 2026, with prices from €2,793 to €6,528, a €3,736 spread on the same certified stone. NZ Jewellers lists it at €6,528. 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
Colour
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 6
Current: €6,528 EUR|Low: €2,793 EUR|High: €6,528 EUR|Avg: €4,028 EUR
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 2€2,793 EUR
Retailer 9€3,199 EUR
Retailer 7€3,298 EUR
Retailer 12€3,323 EUR
Retailer 3€3,354 EUR
Retailer 6€3,459 EUR
Retailer 8€3,565 EUR
Retailer 13€3,635 EUR
Retailer 19€3,747 EUR
Retailer 20€3,747 EUR
Retailer 21€3,747 EUR
Retailer 15€3,773 EUR
Retailer 11€3,879 EUR
Retailer 14€3,976 EUR
Retailer 10€4,017 EUR
Retailer 18€4,223 EUR
Retailer 4€4,323 EUR
Retailer 16€4,573 EUR
Retailer 5€5,417 EUR
Retailer 17€6,250 EUR
NZ Jewellers€6,528 EUR

24 data points across 21 retailers

23 retailers€2,793 EUR to €6,528 EUR

B+
Cheapest Retailer
-
€2,793 EUR
B
Retailer 2
-
€3,199 EUR
View
B
Retailer 3
-
€3,298 EUR
View
B
Retailer 4
-
€3,323 EUR
View
B
Retailer 5
-
€3,354 EUR
View
B
Retailer 6
-
€3,431 EUR
View
B
Retailer 7
-
€3,459 EUR
View
Final sale: no returns
B
Retailer 8
-
€3,565 EUR
View
B
Retailer 9
-
€3,635 EUR
View
B
Retailer 10
-
€3,747 EUR
View
B
Retailer 11
-
€3,747 EUR
View
Retailer 12
-
€3,747 EUR
View
Price last confirmed 9 days ago
B
Retailer 13
-
€3,773 EUR
View
B
Retailer 14
-
€3,879 EUR
View
B
Retailer 15
-
€3,976 EUR
View
Retailer 16
-
€4,017 EUR
View
Price last confirmed 34 days ago
B
Retailer 17
-
€4,064 EUR
View
B
Retailer 18
-
€4,223 EUR
View
B
Retailer 19
-
€4,323 EUR
View
B
Retailer 20
-
€4,573 EUR
View
Retailer 21
-
€5,417 EUR
View
Price last confirmed 11 days ago
B
Retailer 22
-
€6,250 EUR
View
Most Expensive
B
NZ Jewellers
ac532a44-bd7d-45e3-ad64-4a41ba6839dc · Nov 5
€6,528 EUR
$7,289 USD
View
22 more retailers have this diamond
Prices start from €2,793 EURSave up to €3,736 EUR

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
€2,793 EUR