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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 €4,485 EUR
$5,030 USD
As of November 1, 2026
Save €3,292 EUR (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €8,003 EUR at Wholesale Diamonds Direct · As of October 27, 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 1, 2026, with a 73% 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
F
Color
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 1
Current: €5,089 EUR|Low: €4,485 EUR|High: €8,003 EUR|Avg: €5,703 EUR|+0.2%
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 3, 2026
Retailer 9€4,485 EUR
Retailer 13€4,534 EUR
Retailer 4€4,667 EUR
Retailer 2€4,757 EUR
Retailer 12€4,774 EUR
Retailer 8€4,919 EUR
Retailer 1€5,089 EUR
Retailer 5€5,602 EUR
Retailer 11€5,619 EUR
Retailer 6€5,619 EUR
Retailer 7€6,253 EUR
Retailer 10€7,602 EUR
Retailer 3€7,776 EUR
Wholesale Diamonds Direct€8,003 EUR

19 data points across 14 retailers

15 retailers€4,485 EUR to €7,776 EUR

B+
Cheapest Retailer
-
€4,485 EUR
$5,030 USD
B+
Retailer 2
-
€4,534 EUR
$5,085 USD
View
B+
Retailer 3
-
€4,591 EUR
SGD 6,959 SGD
View
B+
Retailer 4
-
€4,667 EUR
$5,235 USD
View
B+
Retailer 5
-
€4,757 EUR
$5,335 USD
View
B+
Retailer 6
-
€4,774 EUR
$5,355 USD
View
B
Retailer 7
-
€4,919 EUR
SGD 7,456 SGD
View
B
Retailer 8
-
€5,089 EUR
£4,494 GBP
View
B
Retailer 9
-
€5,602 EUR
$6,283 USD
View
B
Retailer 10
-
€5,619 EUR
$6,302 USD
View
B
Retailer 11
-
€5,619 EUR
View
B
Retailer 12
-
€6,253 EUR
$7,013 USD
View
B
Retailer 13
-
€7,602 EUR
$8,526 USD
View
B
Retailer 14
-
€7,776 EUR
$8,722 USD
View
Most Expensive
Wholesale Diamonds Direct
611334230 · Oct 27
€8,003 EUR
$8,976 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from €4,485 EURSave up to €3,292 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
€4,485 EUR