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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6552516815

Certificate GIA 6552516815

Diamond specifications and retailer prices

From €1,926 EUR
As of November 1, 2026
Save €3,101 EUR (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €5,026 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 6552516815. Listed at 23 retailers as of November 1, 2026, with prices from €1,926 to €5,026, a €3,101 spread on the same certified stone. NZ Jewellers lists it at €5,026. 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
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552516815
Dimensions10.47 × 5.51 × 3.50 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Needle, Extra Facet
Top View
10.47 mm5.51 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552516815
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €5,026 EUR|Low: €1,910 EUR|High: €5,125 EUR|Avg: €2,534 EUR|-1.9%
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 14€1,910 EUR
Retailer 5€1,926 EUR
Retailer 11€2,011 EUR
Retailer 8€2,023 EUR
Retailer 7€2,168 EUR
Retailer 4€2,172 EUR
Retailer 10€2,178 EUR
Retailer 20€2,178 EUR
Retailer 12€2,216 EUR
Retailer 9€2,219 EUR
Retailer 3€2,279 EUR
Retailer 15€2,332 EUR
Retailer 2€2,370 EUR
Retailer 21€2,434 EUR
Retailer 18€2,513 EUR
Retailer 17€2,529 EUR
Retailer 16€2,797 EUR
Retailer 19€2,934 EUR
Retailer 13€3,690 EUR
Retailer 6€4,211 EUR
NZ Jewellers€5,026 EUR

20 data points across 21 retailers

23 retailers€1,926 EUR to €5,026 EUR

Retailer 1
-
€1,910 EUR
Price last confirmed 17 days ago
A
Retailer 2
-
€1,926 EUR
View
B+
Retailer 3
-
€2,011 EUR
View
Final sale: no returns
A
Retailer 4
-
€2,023 EUR
View
A
Retailer 5
-
€2,168 EUR
View
A
Retailer 6
-
€2,172 EUR
View
A
Retailer 7
-
€2,178 EUR
View
Retailer 8
-
€2,178 EUR
View
Price last confirmed 9 days ago
B+
Retailer 9
-
€2,216 EUR
View
B+
Retailer 10
-
€2,219 EUR
View
B+
Retailer 11
-
€2,279 EUR
View
B+
Retailer 12
-
€2,332 EUR
View
B+
Retailer 13
-
€2,370 EUR
View
B+
Retailer 14
-
€2,434 EUR
View
B+
Retailer 15
-
€2,513 EUR
View
B+
Retailer 16
-
€2,529 EUR
View
B+
Retailer 17
-
€2,560 EUR
View
Retailer 18
-
€2,746 EUR
View
Price last confirmed 31 days ago
B+
Retailer 19
-
€2,797 EUR
View
B
Retailer 20
-
€2,934 EUR
View
B
Retailer 21
-
€3,690 EUR
View
B
Retailer 22
-
€4,211 EUR
View
Most Expensive
B
NZ Jewellers
7263c95b-dd3a-487d-a178-0f0d2679b9a8 · Nov 5
€5,026 EUR
$5,612 USD
View
22 more retailers have this diamond
Prices start from €1,926 EURSave up to €3,101 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.

A
1.20ct Marquise
€1,926 EUR