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Round|Lab Grown|IGI

1.54ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG779639055

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779639055

Diamond specifications and retailer prices

From $200 USD
As of November 5, 2026
Save $960 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,160 USD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779639055 or 779639055. Listed at 16 retailers as of November 5, 2026, with prices from $200 to $1,160, a $960 spread on the same certified stone. Brilliant Earth lists it at $1,160. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779639055
Dimensions7.37 × 7.31 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.37 mm7.31 mm1.54 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779639055
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.5%

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 5
Current: $453 USD|Low: $192 USD|High: $1,173 USD|Avg: $581 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$200 USD
Retailer 12$248 USD
Retailer 10$335 USD
Retailer 4$440 USD
Retailer 5$449 USD
Retailer 1$453 USD
Retailer 11$544 USD
Retailer 2$581 USD
Retailer 6$730 USD
Retailer 8$800 USD
Retailer 3$808 USD
Retailer 7$1,159 USD

45 data points across 12 retailers

16 retailers$200 USD to $1,160 USD

A
Cheapest Retailer
-
$200 USD
A
Retailer 2
-
$232 USD
View
Retailer 3
-
$248 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$248 USD
View
B+
Retailer 5
-
$335 USD
View
A
Retailer 6
-
$440 USD
View
A
Retailer 7
-
$449 USD
View
A
Retailer 8
-
$453 USD
View
B+
Retailer 9
-
$544 USD
View
B+
Retailer 10
-
$581 USD
View
B+
Retailer 11
-
$730 USD
View
B+
Retailer 12
-
$798 USD
View
B+
Retailer 13
-
$800 USD
View
B+
Retailer 14
-
$808 USD
View
B
Retailer 15
-
$1,159 USD
View
Most Expensive
B
Brilliant Earth
20762835A · Nov 5
$1,160 USD
View
15 more retailers have this diamond
Prices start from $200 USDSave up to $960 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
1.54ct Round
$200 USD