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Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG818658778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658778

Diamond specifications and retailer prices

From €346 EUR
$386 USD
As of October 30, 2026
Save €2,599 EUR (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €2,945 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818658778 or 818658778. Listed at 21 retailers as of October 30, 2026, with prices from €346 to €2,945, a €2,599 spread on the same certified stone. Brilliant Earth lists it at €2,945. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658778
Dimensions7.81 × 7.87 × 4.83 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
7.81 mm7.87 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658778
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 30
Current: €2,945 EUR|Low: €346 EUR|High: €2,945 EUR|Avg: €1,089 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 6€346 EUR
Retailer 3€542 EUR
Retailer 13€542 EUR
Retailer 10€577 EUR
Retailer 15€620 EUR
Retailer 17€660 EUR
Retailer 11€688 EUR
Retailer 7€873 EUR
Retailer 16€891 EUR
Retailer 14€945 EUR
Retailer 5€1,089 EUR
Retailer 8€1,272 EUR
Retailer 12€1,352 EUR
Retailer 4€1,485 EUR
Retailer 2€1,501 EUR
Retailer 9€2,318 EUR
Brilliant Earth€2,945 EUR

27 data points across 17 retailers

21 retailers€346 EUR to €2,945 EUR

Retailer 1
-
€314 EUR
$351 USD
Price last confirmed 22 days ago
A
Retailer 2
-
€346 EUR
$386 USD
View
Final sale: no returns
Retailer 3
-
€389 EUR
$435 USD
View
Price last confirmed 20 days ago
Retailer 4
-
€389 EUR
$435 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
€542 EUR
$605 USD
View
A
Retailer 6
-
€542 EUR
$605 USD
View
A
Retailer 7
-
€577 EUR
£508 GBP
View
A
Retailer 8
-
€620 EUR
View
A
Retailer 9
-
€660 EUR
ZAR 11,907 ZAR
View
A
Retailer 10
-
€688 EUR
£605 GBP
View
A
Retailer 11
-
€873 EUR
$975 USD
View
A
Retailer 12
-
€891 EUR
A$1,532 AUD
View
A
Retailer 13
-
€945 EUR
$1,056 USD
View
A
Retailer 14
-
€1,089 EUR
$1,217 USD
View
Retailer 15
-
€1,251 EUR
$1,398 USD
View
Price last confirmed 24 days ago
B+
Retailer 16
-
€1,272 EUR
$1,421 USD
View
B+
Retailer 17
-
€1,352 EUR
$1,511 USD
View
B+
Retailer 18
-
€1,485 EUR
$1,659 USD
View
B+
Retailer 19
-
€1,501 EUR
£1,320 GBP
View
Retailer 20
-
€2,318 EUR
$2,590 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
21580806A · Oct 31
€2,945 EUR
$3,290 USD
View
20 more retailers have this diamond
Prices start from €346 EURSave up to €2,599 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
1.81ct Round
€346 EUR