Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

ID • H/SI1 • GIA 2557359146

Certificate GIA 2557359146

Diamond specifications and retailer prices

From €4,988 EUR
As of November 5, 2026
Save €856 EUR (15%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €9,241 EUR at NZ Jewellers · As of October 24, 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 H 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 2557359146. Listed at 20 retailers as of November 5, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.24°
Pavilion angle41.41°
OriginNatural
Grading LabGIA
CertificateGIA 2557359146
Dimensions10.40 × 5.52 × 3.52 mm
L/W Ratio1.88
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
10.40 mm5.52 mm1.20 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557359146
Side View
Table 63.0%Crown 38.24°Girdle: Slightly ThickPavilion 41.41°Culet: NoneDepth 63.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: €9,241 EUR|Low: €4,365 EUR|High: €9,241 EUR|Avg: €5,556 EUR
NZ Jewellers
Retailer 2
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Retailer 23
November 6, 2026
Retailer 7€4,365 EUR
Retailer 6€4,399 EUR
Retailer 4€4,402 EUR
Retailer 15€4,496 EUR
Retailer 22€4,659 EUR
Retailer 23€4,684 EUR
Retailer 12€4,945 EUR
Retailer 9€4,988 EUR
Retailer 3€5,006 EUR
Retailer 19€5,006 EUR
Retailer 21€5,006 EUR
Retailer 16€5,207 EUR
Retailer 10€5,260 EUR
Retailer 17€5,268 EUR
Retailer 20€5,395 EUR
Retailer 2€5,455 EUR
Retailer 11€5,844 EUR
Retailer 18€6,005 EUR
Retailer 14€6,094 EUR
Retailer 13€6,728 EUR
Retailer 8€8,086 EUR
Retailer 5€8,151 EUR
NZ Jewellers€9,241 EUR

9 data points across 23 retailers

20 retailers€4,988 EUR to €5,844 EUR

Retailer 1
-
€4,365 EUR
Price last confirmed 12 days ago
Retailer 2
-
€4,399 EUR
View
Price last confirmed 12 days ago
Retailer 3
-
€4,402 EUR
View
Price last confirmed 13 days ago
Retailer 4
-
€4,659 EUR
View
Price last confirmed 13 days ago
Retailer 5
-
€4,684 EUR
View
Price last confirmed 11 days ago
Retailer 6
-
€4,945 EUR
View
Price last confirmed 13 days ago
B
Retailer 7
-
€4,988 EUR
View
Retailer 8
-
€5,006 EUR
View
Price last confirmed 12 days ago
Retailer 9
-
€5,006 EUR
View
Price last confirmed 13 days ago
Retailer 10
-
€5,006 EUR
View
Price last confirmed 13 days ago
B
Retailer 11
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€5,260 EUR
View
Retailer 12
-
€5,268 EUR
View
Price last confirmed 11 days ago
B
Retailer 13
-
€5,455 EUR
View
B
Retailer 14
-
€5,844 EUR
View
Retailer 15
-
€6,005 EUR
View
Price last confirmed 12 days ago
Retailer 16
-
€6,094 EUR
View
Price last confirmed 29 days ago
Retailer 17
-
€6,728 EUR
View
Price last confirmed 11 days ago
Retailer 18
-
€8,086 EUR
View
Price last confirmed 15 days ago
Retailer 19
-
€8,151 EUR
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
1844168c-8e69-4a0c-b643-6b09d37bb58f · Oct 24
€9,241 EUR
$10,318 USD
View
Price under review
19 more retailers have this diamond
Prices start from €4,988 EURSave up to €856 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
€4,988 EUR