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Round|Lab Grown|IGI

1.55ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG783641265

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783641265

Diamond specifications and retailer prices

From $418 USD
As of November 3, 2026
Save $2,382 USD (85%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,800 USD 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 F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG783641265 or 783641265. Listed at 7 retailers as of November 3, 2026, with prices from $418 to $2,800, a $2,382 spread on the same certified stone. Brilliant Earth lists it at $2,800. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783641265
Dimensions7.40 × 7.45 × 4.55 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
Top View
7.40 mm7.45 mm1.55 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783641265
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

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: Nov 3
Current: $2,800 USD|Low: $418 USD|High: $4,270 USD|Avg: $1,823 USD|-33.0%
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 16
November 4, 2026
Retailer 12$418 USD
Retailer 4$466 USD
Retailer 2$817 USD
Retailer 14$970 USD
Retailer 8$1,055 USD
Retailer 15$1,057 USD
Retailer 3$1,165 USD
Retailer 13$1,341 USD
Retailer 10$1,372 USD
Retailer 5$1,490 USD
Retailer 7$1,767 USD
Retailer 9$1,945 USD
Retailer 11$1,994 USD
Brilliant Earth$2,800 USD
Retailer 6$3,410 USD
Retailer 16$4,270 USD

14 data points across 16 retailers

7 retailers$418 USD to $2,800 USD

A
Cheapest Retailer
-
$418 USD
B+
Retailer 2
-
$817 USD
View
B+
Retailer 3
-
$1,341 USD
View
B
Retailer 4
-
$1,372 USD
View
B
Retailer 5
-
$1,945 USD
View
B
Retailer 6
-
$1,994 USD
View
Most Expensive
B
Brilliant Earth
21402587Y · Nov 4
$2,800 USD
View
6 more retailers have this diamond
Prices start from $418 USDSave up to $2,382 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
$418 USD