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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2566588407

Certificate GIA 2566588407

Diamond specifications and retailer prices

From €4,505 EUR
As of November 5, 2026
Save €3,534 EUR (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €8,039 EUR at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F 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 2566588407. Listed at 15 retailers as of November 5, 2026, with prices from €4,505 to €8,039, a €3,534 spread on the same certified stone. Wholesale Diamonds Direct lists it at €8,039. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.73°
Pavilion angle39.25°
OriginNatural
Grading LabGIA
CertificateGIA 2566588407
Dimensions10.89 × 5.44 × 3.36 mm
L/W Ratio2.00
Culet sizeNone
Top View
10.89 mm5.44 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566588407
Side View
Table 57.0%Crown 39.73°Girdle: MED-THKPavilion 39.25°Culet: NDepth 61.7%

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 5
Current: €5,061 EUR|Low: €4,505 EUR|High: €8,039 EUR|Avg: €5,725 EUR|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 7, 2026
Retailer 9€4,505 EUR
Retailer 13€4,554 EUR
Retailer 4€4,688 EUR
Retailer 2€4,778 EUR
Retailer 12€4,796 EUR
Retailer 8€4,941 EUR
Retailer 1€5,061 EUR
Retailer 7€5,618 EUR
Retailer 5€5,627 EUR
Retailer 11€5,644 EUR
Retailer 6€6,281 EUR
Retailer 10€7,636 EUR
Retailer 3€7,812 EUR
Wholesale Diamonds Direct€8,039 EUR

23 data points across 14 retailers

15 retailers€4,505 EUR to €8,039 EUR

B+
Cheapest Retailer
-
€4,505 EUR
B+
Retailer 2
-
€4,554 EUR
View
Retailer 3
-
€4,612 EUR
View
Price last confirmed 11 days ago
B+
Retailer 4
-
€4,688 EUR
View
B+
Retailer 5
-
€4,778 EUR
View
B+
Retailer 6
-
€4,796 EUR
View
B
Retailer 7
-
€4,941 EUR
View
B+
Retailer 8
-
€5,061 EUR
View
B
Retailer 9
-
€5,618 EUR
View
B
Retailer 10
-
€5,627 EUR
View
B
Retailer 11
-
€5,644 EUR
View
B
Retailer 12
-
€6,281 EUR
View
B
Retailer 13
-
€7,636 EUR
View
B
Retailer 14
-
€7,812 EUR
View
Most Expensive
B
Wholesale Diamonds Direct
661914535 · Nov 6
€8,039 EUR
$8,976 USD
View
14 more retailers have this diamond
Prices start from €4,505 EURSave up to €3,534 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
€4,505 EUR