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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG843613181

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843613181

Diamond specifications and retailer prices

From €342 EUR
As of November 4, 2026
Save €976 EUR (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,319 EUR at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843613181 or 843613181. Listed at 14 retailers as of November 4, 2026, with prices from €342 to €1,319, a €976 spread on the same certified stone. Brilliant Earth lists it at €1,319. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843613181
Dimensions6.85 × 6.88 × 4.13 mm
L/W Ratio1.00
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
6.85 mm6.88 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843613181
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.2%

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: Nov 4
Current: €1,319 EUR|Low: €342 EUR|High: €1,319 EUR|Avg: €757 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 3€342 EUR
Retailer 4€419 EUR
Retailer 10€491 EUR
Retailer 8€510 EUR
Retailer 2€557 EUR
Retailer 11€629 EUR
Retailer 12€658 EUR
Retailer 9€993 EUR
Retailer 5€997 EUR
Retailer 7€1,074 EUR
Retailer 13€1,105 EUR
Retailer 6€1,183 EUR
Brilliant Earth€1,319 EUR

15 data points across 13 retailers

14 retailers€342 EUR to €1,319 EUR

A
Cheapest Retailer
-
€342 EUR
A
Retailer 2
-
€419 EUR
View
Retailer 3
-
€491 EUR
View
Price last confirmed 8 days ago
A
Retailer 4
-
€510 EUR
View
A
Retailer 5
-
€557 EUR
View
B+
Retailer 6
-
€629 EUR
View
B+
Retailer 7
-
€658 EUR
View
Retailer 8
-
€993 EUR
View
Price last confirmed 8 days ago
B
Retailer 9
-
€997 EUR
View
B
Retailer 10
-
€1,016 EUR
View
B+
Retailer 11
-
€1,074 EUR
View
B
Retailer 12
-
€1,105 EUR
View
B+
Retailer 13
-
€1,183 EUR
View
Most Expensive
B
Brilliant Earth
22234357A · Nov 5
€1,319 EUR
$1,480 USD
View
13 more retailers have this diamond
Prices start from €342 EURSave up to €976 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
€342 EUR