Round|Lab Grown|IGI

1.55ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG830622671

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830622671

Diamond specifications and retailer prices

From $538 USD
As of October 30, 2026
Save $1,962 USD (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,705 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830622671 or 830622671. Listed at 20 retailers as of October 30, 2026, with a 365% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830622671
Dimensions7.41 × 7.46 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.41 mm7.46 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830622671
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
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 30
Current: $2,705 USD|Low: $538 USD|High: $3,090 USD|Avg: $1,511 USD|-0.4%
Rare Carat
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
October 31, 2026
Retailer 6$538 USD
Retailer 16$838 USD
Retailer 9$840 USD
Retailer 12$898 USD
Retailer 13$909 USD
Retailer 4$975 USD
Retailer 2$978 USD
Retailer 15$1,024 USD
Retailer 10$1,371 USD
Retailer 7$1,388 USD
Retailer 8$1,943 USD
Retailer 5$2,074 USD
Retailer 3$2,088 USD
Retailer 14$2,200 USD
Retailer 11$2,500 USD
Rare Carat$2,705 USD

27 data points across 16 retailers

20 retailers$538 USD to $2,500 USD

Retailer 1
-
$489 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$538 USD
View
Final sale: no returns
Retailer 3
-
$606 USD
View
Price last confirmed 28 days ago
Retailer 4
-
$606 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$838 USD
View
A
Retailer 6
-
$840 USD
View
A
Retailer 7
-
$898 USD
£707 GBP
View
A
Retailer 8
-
$909 USD
€866 EUR
View
A
Retailer 9
-
$975 USD
View
A
Retailer 10
-
$978 USD
£770 GBP
View
A
Retailer 11
-
$1,024 USD
ZAR 16,535 ZAR
View
B+
Retailer 12
-
$1,371 USD
View
B+
Retailer 13
-
$1,388 USD
View
Retailer 14
-
$1,594 USD
View
Price last confirmed 23 days ago
B
Retailer 15
-
$1,943 USD
View
B
Retailer 16
-
$2,074 USD
View
B
Retailer 17
-
$2,088 USD
View
B
Retailer 18
-
$2,200 USD
£1,732 GBP
View
B
Retailer 19
-
$2,500 USD
View
Most Expensive
Rare Carat
C533-10A · Oct 21
$2,705 USD
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $538 USDSave up to $1,962 USD

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
$538 USD