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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 €347 EUR
$386 USD
As of October 30, 2026
Save €2,609 EUR (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €2,956 EUR at Brilliant Earth · As of October 29, 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 29, 2026, with prices from €347 to €2,956, a €2,609 spread on the same certified stone. Brilliant Earth lists it at €2,956. 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
Colour
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: €2,956 EUR|Low: €347 EUR|High: €2,956 EUR|Avg: €1,081 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
October 30, 2026
Retailer 5€347 EUR
Retailer 16€544 EUR
Retailer 3€553 EUR
Retailer 10€581 EUR
Retailer 12€623 EUR
Retailer 15€662 EUR
Retailer 11€690 EUR
Retailer 6€876 EUR
Retailer 14€895 EUR
Retailer 4€1,093 EUR
Retailer 8€1,146 EUR
Retailer 7€1,277 EUR
Retailer 2€1,456 EUR
Retailer 17€1,491 EUR
Retailer 13€1,514 EUR
Retailer 9€2,327 EUR
Brilliant Earth€2,956 EUR

27 data points across 17 retailers

21 retailers€347 EUR to €2,956 EUR

Retailer 1
-
€315 EUR
$351 USD
Price last confirmed 20 days ago
A
Retailer 2
-
€347 EUR
$386 USD
View
Final sale: no returns
Retailer 3
-
€391 EUR
$435 USD
View
Price last confirmed 18 days ago
Retailer 4
-
€391 EUR
$435 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
€544 EUR
$605 USD
View
A
Retailer 6
-
€553 EUR
$615 USD
View
A
Retailer 7
-
€581 EUR
£509 GBP
View
A
Retailer 8
-
€623 EUR
View
A
Retailer 9
-
€662 EUR
ZAR 11,907 ZAR
View
A
Retailer 10
-
€690 EUR
£605 GBP
View
A
Retailer 11
-
€876 EUR
$975 USD
View
A
Retailer 12
-
€895 EUR
A$1,532 AUD
View
A
Retailer 13
-
€1,093 EUR
$1,217 USD
View
B+
Retailer 14
-
€1,146 EUR
$1,276 USD
View
Retailer 15
-
€1,256 EUR
$1,398 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
€1,277 EUR
$1,421 USD
View
B+
Retailer 17
-
€1,456 EUR
$1,620 USD
View
B+
Retailer 18
-
€1,491 EUR
$1,659 USD
View
B+
Retailer 19
-
€1,514 EUR
£1,327 GBP
View
B
Retailer 20
-
€2,327 EUR
$2,590 USD
View
Most Expensive
B
Brilliant Earth
21580806A · Oct 29
€2,956 EUR
$3,290 USD
View
20 more retailers have this diamond
Prices start from €347 EURSave up to €2,609 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
€347 EUR