Round|Lab Grown|IGI

1.54ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG816674605

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816674605

Diamond specifications and retailer prices

From $518 USD
As of November 1, 2026
Save $1,025 USD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,935 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

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 LG816674605 or 816674605. Listed at 9 retailers as of October 26, 2026, with a 198% 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

1.54
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816674605
Dimensions7.51 × 7.49 × 4.46 mm
L/W Ratio1.00
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
7.51 mm7.49 mm1.54 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816674605
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 40.3°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,935 USD|Low: $466 USD|High: $67,914 USD|Avg: $1,811 USD|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$518 USD
Retailer 2$618 USD
Retailer 7$644 USD
Retailer 3$683 USD
Retailer 9$887 USD
Retailer 8$1,283 USD
Retailer 4$1,323 USD
Retailer 5$1,543 USD
Rare Carat$1,935 USD

40 data points across 9 retailers

9 retailers$518 USD to $1,543 USD

A
Cheapest Retailer
-
$518 USD
A
Retailer 2
-
$618 USD
€589 EUR
View
A
Retailer 3
-
$644 USD
View
A
Retailer 4
-
$683 USD
£538 GBP
View
B+
Retailer 5
-
$887 USD
View
B+
Retailer 6
-
$1,283 USD
View
B+
Retailer 7
-
$1,323 USD
A$2,035 AUD
View
B+
Retailer 8
-
$1,543 USD
£1,215 GBP
View
Most Expensive
Rare Carat
PM725-1061A · Oct 21
$1,935 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from $518 USDSave up to $1,025 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
$518 USD