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Round|Lab Grown|IGI

1.55ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG801637658

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801637658

Diamond specifications and retailer prices

From €503 EUR
As of November 2, 2026
Save €1,334 EUR (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,837 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801637658 or 801637658. Listed at 15 retailers as of November 2, 2026, with prices from €503 to €1,837, a €1,334 spread on the same certified stone. Brilliant Earth lists it at €1,837. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801637658
Dimensions7.42 × 7.38 × 4.59 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 Faint Blue
Top View
7.42 mm7.38 mm1.55 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801637658
Side View
Table 56.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.0%

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 2
Current: €1,837 EUR|Low: €302 EUR|High: €2,095 EUR|Avg: €870 EUR|-12.3%
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
November 5, 2026
Retailer 5€302 EUR
Retailer 13€503 EUR
Retailer 8€509 EUR
Retailer 12€529 EUR
Retailer 2€537 EUR
Retailer 3€541 EUR
Retailer 9€754 EUR
Retailer 10€791 EUR
Retailer 11€1,036 EUR
Retailer 4€1,180 EUR
Retailer 6€1,233 EUR
Retailer 7€1,504 EUR
Brilliant Earth€1,837 EUR

41 data points across 13 retailers

15 retailers€503 EUR to €1,837 EUR

Retailer 1
-
€302 EUR
Price last confirmed 24 days ago
A
Retailer 2
-
€503 EUR
View
A
Retailer 3
-
€509 EUR
View
A
Retailer 4
-
€529 EUR
View
A
Retailer 5
-
€537 EUR
View
A
Retailer 6
-
€541 EUR
View
B+
Retailer 7
-
€754 EUR
View
B+
Retailer 8
-
€791 EUR
View
B+
Retailer 9
-
€1,036 EUR
View
B+
Retailer 10
-
€1,112 EUR
View
B
Retailer 11
-
€1,180 EUR
View
B+
Retailer 12
-
€1,233 EUR
View
B
Retailer 13
-
€1,504 EUR
View
Retailer 14
-
€1,669 EUR
View
Price last confirmed 29 days ago
Most Expensive
B
Brilliant Earth
19934393A · Nov 4
€1,837 EUR
$2,070 USD
View
14 more retailers have this diamond
Prices start from €503 EURSave up to €1,334 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 Round
€503 EUR