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Round|Lab Grown|IGI

1.20ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG847634770

Shape and cutting style on the report: Round brilliant

Certificate IGI LG847634770

Diamond specifications and retailer prices

From €289 EUR
As of October 29, 2026
Save €509 EUR (64%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €798 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847634770 or 847634770. Listed at 7 retailers as of October 29, 2026, with prices from €289 to €798, a €509 spread on the same certified stone. MOH London lists it at €798. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847634770
Dimensions6.82 × 6.90 × 4.08 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.82 mm6.90 mm1.20 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG847634770
Side View
Table 63.0%Crown 35.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 59.4%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: €798 EUR|Low: €281 EUR|High: €798 EUR|Avg: €408 EUR|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 4€289 EUR
Retailer 3€296 EUR
Retailer 7€310 EUR
Retailer 6€324 EUR
Retailer 2€331 EUR
Retailer 5€576 EUR
MOH London€798 EUR

8 data points across 7 retailers

7 retailers€289 EUR to €798 EUR

A
Cheapest Retailer
-
€289 EUR
A
Retailer 2
-
€296 EUR
£260 GBP
View
B+
Retailer 3
-
€310 EUR
$346 USD
View
B+
Retailer 4
-
€324 EUR
$362 USD
View
A
Retailer 5
-
€331 EUR
£291 GBP
View
B
Retailer 6
-
€576 EUR
$644 USD
View
Most Expensive
B
MOH London
LG847634770 · Oct 29
€798 EUR
£702 GBP
View
6 more retailers have this diamond
Prices start from €289 EURSave up to €509 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
€289 EUR