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Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 2557626736

Certificate GIA 2557626736

Diamond specifications and retailer prices

From €5,627 EUR
As of November 4, 2026
Save €4,271 EUR (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €11,912 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557626736. Listed at 15 retailers as of November 4, 2026, with a 76% 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37.35°
Pavilion angle41.78°
OriginNatural
Grading LabGIA
CertificateGIA 2557626736
Dimensions10.77 × 5.47 × 3.53 mm
L/W Ratio1.97
Girdle conditionThick
Culet sizeNone
Key to symbols
Crystal, Feather, Natural
Top View
10.77 mm5.47 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557626736
Side View
Table 61.0%Crown 37.35°GirdlePavilion 41.78°Culet: NoneDepth 64.6%

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 4
Current: €6,910 EUR|Low: €6,649 EUR|High: €10,046 EUR|Avg: €7,735 EUR|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3€6,650 EUR
Retailer 6€6,868 EUR
Retailer 1€6,910 EUR
Retailer 2€7,739 EUR
Retailer 4€8,689 EUR
Retailer 5€9,899 EUR

37 data points across 6 retailers

15 retailers€5,627 EUR to €9,899 EUR

B+
Cheapest Retailer
-
€5,627 EUR
Retailer 2
-
€5,956 EUR
View
Price last confirmed 8 days ago
B
Retailer 3
-
€6,006 EUR
View
B
Retailer 4
-
€6,452 EUR
View
B
Retailer 5
-
€6,552 EUR
View
B
Retailer 6
-
€6,650 EUR
View
B
Retailer 7
-
€6,829 EUR
View
Retailer 8
-
€6,868 EUR
View
Price last confirmed 15 days ago
B
Retailer 9
-
€6,910 EUR
View
B
Retailer 10
-
€7,446 EUR
View
B
Retailer 11
-
€7,739 EUR
View
Retailer 12
-
€7,846 EUR
View
Price last confirmed 14 days ago
B
Retailer 13
-
€8,689 EUR
View
B
Retailer 14
-
€9,899 EUR
View
Most Expensive
NZ Jewellers
e598eb48-456e-4347-a78a-4cc5790481a2 · Nov 5
€11,912 EUR
$13,300 USD
View
Price under review
14 more retailers have this diamond
Prices start from €5,627 EURSave up to €4,271 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
€5,627 EUR