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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

GD • E/SI1 • IGI LG772629927

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772629927

Diamond specifications and retailer prices

From €183 EUR
$204 USD
As of October 29, 2026
Save €1,088 EUR (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,271 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG772629927 or 772629927. Listed at 16 retailers as of October 29, 2026, with prices from €183 to €1,271, a €1,088 spread on the same certified stone. Brilliant Earth lists it at €1,271. 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

1.50
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772629927
Dimensions7.07 × 7.15 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.07 mm7.15 mm1.50 ctE / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772629927
Side View
Table 59.0%Crown 37.6°Girdle: MED-STKPavilion 42.9°Culet: NoneDepth 66.7%

Caratlytics Score

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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: €1,271 EUR|Low: €175 EUR|High: €1,271 EUR|Avg: €498 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
October 31, 2026
Retailer 11€183 EUR
Retailer 13€205 EUR
Retailer 4€212 EUR
Retailer 12€226 EUR
Retailer 2€377 EUR
Retailer 6€393 EUR
Retailer 7€416 EUR
Retailer 3€456 EUR
Retailer 10€566 EUR
Retailer 9€662 EUR
Retailer 5€729 EUR
Retailer 8€1,066 EUR
Brilliant Earth€1,271 EUR

44 data points across 13 retailers

16 retailers€183 EUR to €1,271 EUR

A
Cheapest Retailer
-
€183 EUR
$204 USD
B+
Retailer 2
-
€205 EUR
$229 USD
View
Final sale: no returns
B+
Retailer 3
-
€212 EUR
$237 USD
View
B+
Retailer 4
-
€226 EUR
$253 USD
View
B+
Retailer 5
-
€226 EUR
$253 USD
View
B
Retailer 6
-
€306 EUR
$342 USD
View
B+
Retailer 7
-
€376 EUR
$420 USD
View
B+
Retailer 8
-
€377 EUR
View
B+
Retailer 9
-
€393 EUR
£345 GBP
View
B+
Retailer 10
-
€416 EUR
£366 GBP
View
B+
Retailer 11
-
€456 EUR
$509 USD
View
B
Retailer 12
-
€566 EUR
$632 USD
View
B
Retailer 13
-
€662 EUR
$740 USD
View
B
Retailer 14
-
€729 EUR
$815 USD
View
B
Retailer 15
-
€1,066 EUR
£938 GBP
View
Most Expensive
C
Brilliant Earth
21312837A · Oct 29
€1,271 EUR
$1,420 USD
View
15 more retailers have this diamond
Prices start from €183 EURSave up to €1,088 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
1.50ct Round
€183 EUR