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Round|Lab Grown|IGI

1.50ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG818685585

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818685585

Diamond specifications and retailer prices

From €193 EUR
$216 USD
As of November 1, 2026
Save €856 EUR (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,049 EUR at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818685585 or 818685585. Listed at 21 retailers as of November 1, 2026, with prices from €193 to €1,049, a €856 spread on the same certified stone. Reve Diamonds lists it at €1,049. 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

1.50
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818685585
Dimensions7.40 × 7.45 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.40 mm7.45 mm1.50 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818685585
Side View
Table 59.0%Crown 31.7°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 60.1%

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: Nov 1
Current: €390 EUR|Low: €173 EUR|High: €1,015 EUR|Avg: €401 EUR|+6.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9€173 EUR
Retailer 6€193 EUR
Retailer 4€215 EUR
Retailer 8€291 EUR
Retailer 3€360 EUR
Retailer 7€384 EUR
Retailer 1€390 EUR
Retailer 5€692 EUR
Retailer 2€1,004 EUR

43 data points across 9 retailers

21 retailers€193 EUR to €1,049 EUR

Retailer 1
-
€173 EUR
$193 USD
Price last confirmed 12 days ago
Retailer 2
-
€173 EUR
$193 USD
View
Price last confirmed 41 days ago
Retailer 3
-
€173 EUR
$193 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
€193 EUR
$216 USD
View
Final sale: no returns
Retailer 5
-
€201 EUR
$224 USD
View
Price last confirmed 41 days ago
Retailer 6
-
€212 EUR
$237 USD
View
Price last confirmed 40 days ago
Retailer 7
-
€212 EUR
$237 USD
View
Price last confirmed 62 days ago
Retailer 8
-
€212 EUR
$237 USD
View
Price last confirmed 34 days ago
A
Retailer 9
-
€215 EUR
$240 USD
View
Retailer 10
-
€215 EUR
$240 USD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
€291 EUR
$325 USD
View
A
Retailer 12
-
€360 EUR
View
A
Retailer 13
-
€390 EUR
£343 GBP
View
B+
Retailer 14
-
€401 EUR
$448 USD
View
Retailer 15
-
€690 EUR
$771 USD
View
Price last confirmed 33 days ago
B
Retailer 16
-
€690 EUR
$771 USD
View
Retailer 17
-
€690 EUR
$771 USD
View
Price last confirmed 42 days ago
B
Retailer 18
-
€692 EUR
$773 USD
View
B
Retailer 19
-
€738 EUR
$824 USD
View
B
Retailer 20
-
€1,004 EUR
£883 GBP
View
Most Expensive
B
Reve Diamonds
9A134B3A8 · Nov 1
€1,049 EUR
$1,172 USD
View
20 more retailers have this diamond
Prices start from €193 EURSave up to €856 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
€193 EUR