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Marquise|Natural|GIA

1.21ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6552770005

Certificate GIA 6552770005

Diamond specifications and retailer prices

From €4,187 EUR
As of November 1, 2026
Save €3,813 EUR (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €8,000 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural marquise diamond

This 1.21ct 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 6552770005. Listed at 12 retailers as of November 1, 2026, with prices from €4,187 to €8,000, a €3,813 spread on the same certified stone. MOH London lists it at €8,000. 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

1.21
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552770005
Dimensions10.75 × 5.65 × 3.41 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Top View
10.75 mm5.65 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552770005
Side View
Table 55.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.4%

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: €8,000 EUR|Low: €4,187 EUR|High: €8,118 EUR|Avg: €5,335 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 6€4,187 EUR
Retailer 7€4,302 EUR
Retailer 3€4,338 EUR
Retailer 9€4,591 EUR
Retailer 8€4,617 EUR
Retailer 2€5,172 EUR
Retailer 11€5,221 EUR
Retailer 4€5,282 EUR
Retailer 10€5,410 EUR
Retailer 5€6,642 EUR
MOH London€8,000 EUR

46 data points across 11 retailers

12 retailers€4,187 EUR to €8,000 EUR

B+
Cheapest Retailer
-
€4,187 EUR
B+
Retailer 2
-
€4,302 EUR
View
B+
Retailer 3
-
€4,338 EUR
View
B
Retailer 4
-
€4,591 EUR
View
B
Retailer 5
-
€4,617 EUR
View
B
Retailer 6
-
€5,172 EUR
View
B
Retailer 7
-
€5,221 EUR
View
B
Retailer 8
-
€5,282 EUR
View
B
Retailer 9
-
€5,404 EUR
View
Retailer 10
-
€5,410 EUR
View
Price last confirmed 34 days ago
B
Retailer 11
-
€6,642 EUR
View
Most Expensive
B
MOH London
925C02E91 · Nov 4
€8,000 EUR
£7,033 GBP
View
11 more retailers have this diamond
Prices start from €4,187 EURSave up to €3,813 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+
1.21ct Marquise
€4,187 EUR