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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 2557770054

Certificate GIA 2557770054

Diamond specifications and retailer prices

From €4,321 EUR
$4,846 USD
As of November 1, 2026
Save €3,736 EUR (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €8,056 EUR at MOH London · As of November 2, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557770054. Listed at 19 retailers as of November 1, 2026, with prices from €4,321 to €8,056, a €3,736 spread on the same certified stone. MOH London lists it at €8,056. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.01°
Pavilion angle40.15°
OriginNatural
Grading LabGIA
CertificateGIA 2557770054
Dimensions10.07 × 5.44 × 3.55 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.07 mm5.44 mm1.20 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557770054
Side View
Table 59.0%Crown 41.01°Girdle: STK-VTKPavilion 40.15°Culet: NoneDepth 65.2%

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: €8,056 EUR|Low: €3,947 EUR|High: €8,154 EUR|Avg: €5,414 EUR|-1.2%
MOH London
Retailer 2
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Retailer 23
November 3, 2026
Retailer 14€3,947 EUR
Retailer 11€4,195 EUR
Retailer 7€4,321 EUR
Retailer 8€4,636 EUR
Retailer 5€4,895 EUR
Retailer 22€4,936 EUR
Retailer 16€4,971 EUR
Retailer 20€5,164 EUR
Retailer 23€5,205 EUR
Retailer 2€5,246 EUR
Retailer 10€5,332 EUR
Retailer 13€5,334 EUR
Retailer 6€5,434 EUR
Retailer 4€5,537 EUR
Retailer 21€5,537 EUR
Retailer 3€5,715 EUR
Retailer 19€5,716 EUR
Retailer 17€5,974 EUR
Retailer 9€6,031 EUR
Retailer 15€6,481 EUR
Retailer 18€6,718 EUR
Retailer 12€6,852 EUR
MOH London€8,056 EUR

17 data points across 23 retailers

19 retailers€4,321 EUR to €8,056 EUR

B+
Cheapest Retailer
-
€4,321 EUR
$4,846 USD
B
Retailer 2
-
€4,636 EUR
$5,200 USD
View
B
Retailer 3
-
€4,895 EUR
$5,490 USD
View
B
Retailer 4
-
€4,936 EUR
CA$7,689 CAD
View
Retailer 5
-
€4,954 EUR
$5,556 USD
View
Price last confirmed 26 days ago
B
Retailer 6
-
€5,039 EUR
$5,652 USD
View
B
Retailer 7
-
€5,164 EUR
$5,792 USD
View
B
Retailer 8
-
€5,205 EUR
$5,838 USD
View
B
Retailer 9
-
€5,246 EUR
£4,633 GBP
View
B
Retailer 10
-
€5,334 EUR
£4,710 GBP
View
Retailer 11
-
€5,434 EUR
A$9,377 AUD
View
Price last confirmed 30 days ago
B
Retailer 12
-
€5,537 EUR
$6,210 USD
View
B
Retailer 13
-
€5,537 EUR
$6,210 USD
View
B
Retailer 14
-
€5,715 EUR
$6,410 USD
View
B
Retailer 15
-
€5,716 EUR
$6,411 USD
View
B
Retailer 16
-
€5,974 EUR
View
Retailer 17
-
€6,031 EUR
$6,764 USD
View
Price last confirmed 25 days ago
B
Retailer 18
-
€6,718 EUR
ZAR 121,735 ZAR
View
Most Expensive
B
MOH London
3DCC2BDE9 · Nov 2
€8,056 EUR
£7,115 GBP
View
18 more retailers have this diamond
Prices start from €4,321 EURSave up to €3,736 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
€4,321 EUR