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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 €508 EUR
As of October 29, 2026
Save €1,345 EUR (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,853 EUR at Brilliant Earth · As of October 31, 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 October 29, 2026, with prices from €508 to €1,853, a €1,345 spread on the same certified stone. Brilliant Earth lists it at €1,853. 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
Color
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: Oct 29
Current: €1,853 EUR|Low: €304 EUR|High: €2,112 EUR|Avg: €871 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 1, 2026
Retailer 5€304 EUR
Retailer 7€508 EUR
Retailer 9€511 EUR
Retailer 8€532 EUR
Retailer 2€544 EUR
Retailer 10€545 EUR
Retailer 6€745 EUR
Retailer 13€797 EUR
Retailer 4€1,041 EUR
Retailer 3€1,190 EUR
Retailer 11€1,248 EUR
Retailer 12€1,678 EUR
Brilliant Earth€1,853 EUR

44 data points across 13 retailers

15 retailers€508 EUR to €1,853 EUR

Retailer 1
-
€304 EUR
$340 USD
Price last confirmed 20 days ago
A
Retailer 2
-
€508 EUR
View
A
Retailer 3
-
€511 EUR
$571 USD
View
A
Retailer 4
-
€532 EUR
ZAR 9,605 ZAR
View
A
Retailer 5
-
€544 EUR
£479 GBP
View
A
Retailer 6
-
€545 EUR
$609 USD
View
A
Retailer 7
-
€745 EUR
$832 USD
View
B+
Retailer 8
-
€797 EUR
$890 USD
View
B+
Retailer 9
-
€1,041 EUR
$1,163 USD
View
B+
Retailer 10
-
€1,122 EUR
$1,253 USD
View
B
Retailer 11
-
€1,190 EUR
$1,330 USD
View
Retailer 12
-
€1,248 EUR
£1,098 GBP
View
Price last confirmed 11 days ago
Retailer 13
-
€1,678 EUR
$1,875 USD
View
Price last confirmed 11 days ago
Retailer 14
-
€1,683 EUR
$1,880 USD
View
Price last confirmed 25 days ago
Most Expensive
B
Brilliant Earth
19934393A · Oct 31
€1,853 EUR
$2,070 USD
View
14 more retailers have this diamond
Prices start from €508 EURSave up to €1,345 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
€508 EUR