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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2557877511

Certificate GIA 2557877511

Diamond specifications and retailer prices

From €2,663 EUR
As of November 6, 2026
Save €3,565 EUR (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €6,228 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 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 2557877511. Listed at 19 retailers as of November 5, 2026, with prices from €2,663 to €6,228, a €3,565 spread on the same certified stone. NZ Jewellers lists it at €6,228. 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
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557877511
Dimensions10.35 × 5.44 × 3.47 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Cavity, Needle
Top View
10.35 mm5.44 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557877511
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 63.9%

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 6
Current: €6,228 EUR|Low: €2,663 EUR|High: €6,228 EUR|Avg: €3,875 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
November 7, 2026
Retailer 7€2,663 EUR
Retailer 13€3,328 EUR
Retailer 4€3,395 EUR
Retailer 8€3,515 EUR
Retailer 3€3,575 EUR
Retailer 11€3,575 EUR
Retailer 12€3,575 EUR
Retailer 2€3,620 EUR
Retailer 5€3,645 EUR
Retailer 6€3,793 EUR
Retailer 9€3,921 EUR
Retailer 14€4,125 EUR
Retailer 10€5,977 EUR
NZ Jewellers€6,228 EUR

30 data points across 14 retailers

19 retailers€2,663 EUR to €6,228 EUR

A
Cheapest Retailer
-
€2,663 EUR
B+
Retailer 2
-
€2,841 EUR
View
Final sale: no returns
B+
Retailer 3
-
€2,971 EUR
View
B+
Retailer 4
-
€3,146 EUR
View
B+
Retailer 5
-
€3,328 EUR
View
B+
Retailer 6
-
€3,395 EUR
View
B+
Retailer 7
-
€3,515 EUR
View
B
Retailer 8
-
€3,575 EUR
View
B
Retailer 9
-
€3,575 EUR
View
Retailer 10
-
€3,575 EUR
View
Price last confirmed 9 days ago
B
Retailer 11
-
€3,620 EUR
View
B
Retailer 12
-
€3,645 EUR
View
B
Retailer 13
-
€3,705 EUR
View
B
Retailer 14
-
€3,793 EUR
View
B
Retailer 15
-
€3,807 EUR
View
B+
Retailer 16
-
€3,921 EUR
View
B
Retailer 17
-
€4,125 EUR
View
B
Retailer 18
-
€5,977 EUR
View
Most Expensive
C
NZ Jewellers
c2a31624-9175-4791-8f74-0e7976ecf87d · Nov 5
€6,228 EUR
$6,953 USD
View
18 more retailers have this diamond
Prices start from €2,663 EURSave up to €3,565 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
€2,663 EUR