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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 5553606199

Certificate GIA 5553606199

Diamond specifications and retailer prices

From €2,876 EUR
As of November 5, 2026
Save €3,816 EUR (57%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €6,692 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 5553606199. Listed at 26 retailers as of November 5, 2026, with prices from €2,876 to €6,692, a €3,816 spread on the same certified stone. NZ Jewellers lists it at €6,692. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553606199
Dimensions10.07 × 5.57 × 3.48 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Cloud, Crystal, Cavity, Natural
Top View
10.07 mm5.57 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553606199
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.5%

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 5
Current: €6,692 EUR|Low: €2,442 EUR|High: €6,692 EUR|Avg: €3,637 EUR|+3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
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Retailer 19
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Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
November 6, 2026
Retailer 20€2,442 EUR
Retailer 14€2,788 EUR
Retailer 22€2,876 EUR
Retailer 12€3,027 EUR
Retailer 27€3,126 EUR
Retailer 26€3,206 EUR
Retailer 6€3,212 EUR
Retailer 15€3,281 EUR
Retailer 5€3,327 EUR
Retailer 18€3,395 EUR
Retailer 23€3,481 EUR
Retailer 17€3,506 EUR
Retailer 21€3,555 EUR
Retailer 11€3,700 EUR
Retailer 8€3,706 EUR
Retailer 2€3,727 EUR
Retailer 16€3,832 EUR
Retailer 25€3,876 EUR
Retailer 7€3,932 EUR
Retailer 24€3,932 EUR
Retailer 19€3,943 EUR
Retailer 13€4,015 EUR
Retailer 3€4,057 EUR
Retailer 9€4,059 EUR
Retailer 10€4,171 EUR
Retailer 4€6,151 EUR
NZ Jewellers€6,692 EUR

24 data points across 27 retailers

26 retailers€2,876 EUR to €6,692 EUR

Retailer 1
-
€2,442 EUR
Price last confirmed 30 days ago
Retailer 2
-
€2,788 EUR
View
Price last confirmed 23 days ago
B+
Retailer 3
-
€2,876 EUR
View
B+
Retailer 4
-
€3,027 EUR
View
Retailer 5
-
€3,126 EUR
View
Price last confirmed 17 days ago
B+
Retailer 6
-
€3,212 EUR
View
Final sale: no returns
B
Retailer 7
-
€3,327 EUR
View
Retailer 8
-
€3,395 EUR
View
Price last confirmed 37 days ago
Retailer 9
-
€3,430 EUR
View
Price last confirmed 32 days ago
Retailer 10
-
€3,448 EUR
View
Price last confirmed 32 days ago
B
Retailer 11
-
€3,481 EUR
View
Retailer 12
-
€3,506 EUR
View
Price last confirmed 34 days ago
B
Retailer 13
-
€3,555 EUR
View
Retailer 14
-
€3,700 EUR
View
Price last confirmed 22 days ago
B
Retailer 15
-
€3,706 EUR
View
B
Retailer 16
-
€3,727 EUR
View
Retailer 17
-
€3,832 EUR
View
Price last confirmed 22 days ago
Retailer 18
-
€3,876 EUR
View
Price last confirmed 16 days ago
B
Retailer 19
-
€3,932 EUR
View
B
Retailer 20
-
€3,932 EUR
View
Retailer 21
-
€3,943 EUR
View
Price last confirmed 38 days ago
B
Retailer 22
-
€4,015 EUR
View
B
Retailer 23
-
€4,057 EUR
View
B
Retailer 24
-
€4,059 EUR
View
Retailer 25
-
€6,151 EUR
View
Price last confirmed 17 days ago
Most Expensive
B
NZ Jewellers
5280c123-4502-4cb1-bf1a-66867a5a9419 · Nov 5
€6,692 EUR
$7,472 USD
View
25 more retailers have this diamond
Prices start from €2,876 EURSave up to €3,816 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
€2,876 EUR