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Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 5456634140

Certificate GIA 5456634140

Diamond specifications and retailer prices

From €4,065 EUR
As of November 6, 2026
Save €3,765 EUR (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €7,830 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded E 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 5456634140. Listed at 10 retailers as of November 4, 2026, with prices from €4,065 to €7,830, a €3,765 spread on the same certified stone. MOH London lists it at €7,830. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.19°
Pavilion angle31.73°
OriginNatural
Grading LabGIA
CertificateGIA 5456634140
Dimensions6.39 × 5.20 × 3.73 mm
L/W Ratio1.23
Top View
6.39 mm5.20 mm1.20 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5456634140
Side View
Table 68.0%Crown 51.19°Girdle: Very ThickPavilion 31.73°Culet: NoneDepth 71.8%

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 6
Current: €7,830 EUR|Low: €4,065 EUR|High: €7,946 EUR|Avg: €5,337 EUR|+2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3€4,065 EUR
Retailer 10€4,299 EUR
Retailer 6€4,313 EUR
Retailer 8€4,425 EUR
Retailer 9€4,930 EUR
Retailer 7€4,937 EUR
Retailer 2€5,245 EUR
Retailer 4€5,547 EUR
Retailer 5€6,014 EUR
MOH London€7,830 EUR

45 data points across 10 retailers

10 retailers€4,065 EUR to €7,830 EUR

B+
Cheapest Retailer
-
€4,065 EUR
B
Retailer 2
-
€4,299 EUR
View
B
Retailer 3
-
€4,313 EUR
View
B
Retailer 4
-
€4,425 EUR
View
Retailer 5
-
€4,930 EUR
View
Price last confirmed 9 days ago
Retailer 6
-
€4,937 EUR
View
Price last confirmed 29 days ago
B
Retailer 7
-
€5,245 EUR
View
B
Retailer 8
-
€5,547 EUR
View
B
Retailer 9
-
€6,014 EUR
View
Most Expensive
B
MOH London
E1279AAA1 · Nov 4
€7,830 EUR
£6,884 GBP
View
9 more retailers have this diamond
Prices start from €4,065 EURSave up to €3,765 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 Radiant
€4,065 EUR