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Round|Lab Grown|IGI

1.54ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG781606712

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781606712

Diamond specifications and retailer prices

From $356 USD
As of October 31, 2026
Save $1,769 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,830 USD at Brilliant Earth · As of October 16, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG781606712 or 781606712. Listed at 10 retailers as of October 25, 2026, with a 497% 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
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781606712
Dimensions7.48 × 7.43 × 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
7.48 mm7.43 mm1.54 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781606712
Side View
Table 58.0%Crown 34.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 31
Current: $2,830 USD|Low: $351 USD|High: $2,920 USD|Avg: $1,370 USD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 2$356 USD
Retailer 3$590 USD
Retailer 6$624 USD
Retailer 5$692 USD
Retailer 10$942 USD
Retailer 4$1,268 USD
Retailer 8$1,339 USD
Retailer 7$1,562 USD
Retailer 9$2,125 USD
Brilliant Earth$2,830 USD

41 data points across 10 retailers

10 retailers$356 USD to $2,125 USD

A+
Cheapest Retailer
-
$356 USD
Final sale: no returns
A
Retailer 2
-
$590 USD
View
A
Retailer 3
-
$624 USD
€594 EUR
View
A
Retailer 4
-
$692 USD
£545 GBP
View
A
Retailer 5
-
$942 USD
View
B+
Retailer 6
-
$1,268 USD
SGD 1,713 SGD
View
B+
Retailer 7
-
$1,339 USD
View
B+
Retailer 8
-
$1,562 USD
£1,230 GBP
View
B
Retailer 9
-
$2,125 USD
View
Most Expensive
Brilliant Earth
18647617A · Oct 16
$2,830 USD
View
Price last confirmed 15 days ago
9 more retailers have this diamond
Prices start from $356 USDSave up to $1,769 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
$356 USD