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Round|Lab Grown|IGI

1.54ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG678598616

Shape and cutting style on the report: Round brilliant

Certificate IGI LG678598616

Diamond specifications and retailer prices

From $340 USD
As of November 3, 2026
Save $2,800 USD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,140 USD at Brilliant Earth · As of November 4, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG678598616 or 678598616. Listed at 24 retailers as of November 3, 2026, with prices from $340 to $3,140, a $2,800 spread on the same certified stone. Brilliant Earth lists it at $3,140. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678598616
Dimensions7.37 × 7.32 × 4.58 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
7.37 mm7.32 mm1.54 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678598616
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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 3
Current: $3,140 USD|Low: $340 USD|High: $3,690 USD|Avg: $1,044 USD|-14.9%
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
Retailer 14
Retailer 15
November 4, 2026
Retailer 7$340 USD
Retailer 5$565 USD
Retailer 4$575 USD
Retailer 2$596 USD
Retailer 12$670 USD
Retailer 3$700 USD
Retailer 14$725 USD
Retailer 10$745 USD
Retailer 8$989 USD
Retailer 13$1,056 USD
Retailer 15$1,344 USD
Retailer 11$1,591 USD
Retailer 6$1,696 USD
Retailer 9$1,895 USD
Brilliant Earth$3,140 USD

30 data points across 15 retailers

24 retailers$340 USD to $3,140 USD

A
Cheapest Retailer
-
$340 USD
A
Retailer 2
-
$379 USD
View
Final sale: no returns
A
Retailer 3
-
$394 USD
View
A
Retailer 4
-
$421 USD
View
Retailer 5
-
$421 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$565 USD
View
A
Retailer 7
-
$575 USD
View
A
Retailer 8
-
$596 USD
View
A
Retailer 9
-
$670 USD
View
A
Retailer 10
-
$678 USD
View
A
Retailer 11
-
$700 USD
View
A
Retailer 12
-
$725 USD
View
A
Retailer 13
-
$745 USD
View
B+
Retailer 14
-
$897 USD
View
B+
Retailer 15
-
$989 USD
View
B+
Retailer 16
-
$1,056 USD
View
B+
Retailer 17
-
$1,344 USD
View
B
Retailer 18
-
$1,353 USD
View
B
Retailer 19
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$1,396 USD
View
B
Retailer 20
-
$1,591 USD
View
B
Retailer 21
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$1,638 USD
View
B
Retailer 22
-
$1,696 USD
View
B
Retailer 23
-
$1,895 USD
View
Most Expensive
B
Brilliant Earth
13081191A · Nov 4
$3,140 USD
View
23 more retailers have this diamond
Prices start from $340 USDSave up to $2,800 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
$340 USD