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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 5553986283

Certificate GIA 5553986283

Diamond specifications and retailer prices

From €2,143 EUR
As of November 6, 2026
Save €2,622 EUR (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €5,118 EUR at NZ Jewellers · As of September 27, 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 5553986283. Listed at 18 retailers as of November 1, 2026, with a 122% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553986283
Dimensions10.69 × 5.62 × 3.41 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Indented Natural, Natural
Top View
10.69 mm5.62 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553986283
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.7%

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: €2,948 EUR|Low: €2,132 EUR|High: €4,816 EUR|Avg: €2,900 EUR|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12€2,143 EUR
Retailer 5€2,222 EUR
Retailer 9€2,581 EUR
Retailer 4€2,630 EUR
Retailer 6€2,802 EUR
Retailer 2€2,849 EUR
Retailer 1€2,948 EUR
Retailer 10€2,959 EUR
Retailer 3€2,977 EUR
Retailer 7€2,986 EUR
Retailer 8€3,317 EUR
Retailer 11€4,765 EUR

28 data points across 12 retailers

18 retailers€2,143 EUR to €4,765 EUR

A
Cheapest Retailer
-
€2,143 EUR
A
Retailer 2
-
€2,222 EUR
View
A
Retailer 3
-
€2,581 EUR
View
B+
Retailer 4
-
€2,630 EUR
View
Final sale: no returns
B+
Retailer 5
-
€2,717 EUR
View
B+
Retailer 6
-
€2,802 EUR
View
Retailer 7
-
€2,849 EUR
View
Price last confirmed 22 days ago
B+
Retailer 8
-
€2,886 EUR
View
Retailer 9
-
€2,938 EUR
View
Price last confirmed 42 days ago
Retailer 10
-
€2,938 EUR
View
Price last confirmed 34 days ago
B+
Retailer 11
-
€2,948 EUR
View
B+
Retailer 12
-
€2,959 EUR
View
B+
Retailer 13
-
€2,977 EUR
View
B+
Retailer 14
-
€2,986 EUR
View
B+
Retailer 15
-
€3,317 EUR
View
Retailer 16
-
€3,389 EUR
View
Price last confirmed 40 days ago
B
Retailer 17
-
€4,765 EUR
View
Most Expensive
NZ Jewellers
53aac2cf-aa17-4cbf-abb5-3d74a658046a · Sep 27
€5,118 EUR
$5,714 USD
View
Price last confirmed 40 days ago
17 more retailers have this diamond
Prices start from €2,143 EURSave up to €2,622 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
€2,143 EUR