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Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1242104470

Certificate GIA 1242104470

Diamond specifications and retailer prices

From €2,843 EUR
As of November 6, 2026
Save €3,347 EUR (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €6,190 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1242104470. Listed at 7 retailers as of November 1, 2026, with prices from €2,843 to €6,190, a €3,347 spread on the same certified stone. MOH London lists it at €6,190. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1242104470
Dimensions6.71 × 6.76 × 4.21 mm
L/W Ratio1.01
Key to symbols
Crystal, Pinpoint
Top View
6.71 mm6.76 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1242104470
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €6,190 EUR|Low: €2,843 EUR|High: €6,190 EUR|Avg: €3,842 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5€2,843 EUR
Retailer 4€3,263 EUR
Retailer 7€3,429 EUR
Retailer 3€3,586 EUR
Retailer 2€3,681 EUR
Retailer 6€4,277 EUR
MOH London€6,190 EUR

8 data points across 7 retailers

7 retailers€2,843 EUR to €6,190 EUR

A
Cheapest Retailer
-
€2,843 EUR
A
Retailer 2
-
€3,263 EUR
View
B+
Retailer 3
-
€3,429 EUR
View
B+
Retailer 4
-
€3,586 EUR
View
B+
Retailer 5
-
€3,681 EUR
View
B+
Retailer 6
-
€4,277 EUR
View
Most Expensive
B
MOH London
49913240E · Nov 1
€6,190 EUR
£5,442 GBP
View
6 more retailers have this diamond
Prices start from €2,843 EURSave up to €3,347 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.

A
1.20ct Round
€2,843 EUR