Radiant|Lab Grown|IGI

1.55ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG818630033

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG818630033

Diamond specifications and retailer prices

From €209 EUR
$234 USD
As of October 30, 2026
Save €2,020 EUR (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €2,229 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818630033 or 818630033. Listed at 20 retailers as of October 30, 2026, with prices from €209 to €2,229, a €2,020 spread on the same certified stone. Brilliant Earth lists it at €2,229. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818630033
Dimensions8.29 × 5.83 × 3.84 mm
L/W Ratio1.42
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
8.29 mm5.83 mm1.55 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818630033
Side View
Table 62.0%Crown 51.9°Girdle: MediumPavilion 37.8°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €545 EUR|Low: €209 EUR|High: €2,006 EUR|Avg: €831 EUR|-9.7%
Retailer 1
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
Retailer 18
Retailer 19
November 2, 2026
Retailer 18€209 EUR
Retailer 7€234 EUR
Retailer 17€242 EUR
Retailer 19€259 EUR
Retailer 9€438 EUR
Retailer 12€493 EUR
Retailer 1€545 EUR
Retailer 14€671 EUR
Retailer 16€705 EUR
Retailer 6€721 EUR
Retailer 2€917 EUR
Retailer 4€1,052 EUR
Retailer 8€1,069 EUR
Retailer 10€1,104 EUR
Retailer 5€1,114 EUR
Retailer 13€1,145 EUR
Retailer 11€1,160 EUR
Retailer 15€1,596 EUR
Retailer 3€2,006 EUR

45 data points across 19 retailers

20 retailers€209 EUR to €2,229 EUR

A
Cheapest Retailer
-
€209 EUR
$234 USD
A
Retailer 2
-
€234 EUR
$262 USD
View
Final sale: no returns
A
Retailer 3
-
€242 EUR
$271 USD
View
A
Retailer 4
-
€259 EUR
$290 USD
View
A
Retailer 5
-
€438 EUR
$491 USD
View
A
Retailer 6
-
€493 EUR
ZAR 8,933 ZAR
View
A
Retailer 7
-
€545 EUR
£482 GBP
View
Retailer 8
-
€671 EUR
A$1,157 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
€705 EUR
$791 USD
View
A
Retailer 10
-
€721 EUR
$809 USD
View
B+
Retailer 11
-
€917 EUR
$1,029 USD
View
B+
Retailer 12
-
€1,052 EUR
$1,180 USD
View
B+
Retailer 13
-
€1,069 EUR
$1,199 USD
View
B+
Retailer 14
-
€1,104 EUR
SGD 1,674 SGD
View
B+
Retailer 15
-
€1,114 EUR
£984 GBP
View
B+
Retailer 16
-
€1,145 EUR
£1,011 GBP
View
Retailer 17
-
€1,160 EUR
A$2,002 AUD
View
Price last confirmed 25 days ago
Retailer 18
-
€1,596 EUR
$1,790 USD
View
Price last confirmed 14 days ago
B
Retailer 19
-
€2,006 EUR
$2,250 USD
View
Most Expensive
B
Brilliant Earth
22138650Y · Oct 31
€2,229 EUR
$2,500 USD
View
19 more retailers have this diamond
Prices start from €209 EURSave up to €2,020 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
1.55ct Radiant
€209 EUR