Round|Lab Grown|IGI

1.55ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG816624976

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816624976

Diamond specifications and retailer prices

From $317 USD
As of October 29, 2026
Save $2,533 USD (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,850 USD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816624976 or 816624976. Listed at 23 retailers as of October 29, 2026, with prices from $317 to $2,850, a $2,533 spread on the same certified stone. Brilliant Earth lists it at $2,850. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624976
Dimensions7.49 × 7.45 × 4.54 mm
L/W Ratio1.01
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
7.49 mm7.45 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624976
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.7%

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: Oct 29
Current: $2,850 USD|Low: $309 USD|High: $2,850 USD|Avg: $1,050 USD|+0.4%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
October 29, 2026
Retailer 17$317 USD
Retailer 18$354 USD
Retailer 4$369 USD
Retailer 7$394 USD
Retailer 14$395 USD
Retailer 3$550 USD
Retailer 21$633 USD
Retailer 11$642 USD
Retailer 23$678 USD
Retailer 15$688 USD
Retailer 13$697 USD
Retailer 9$919 USD
Retailer 22$920 USD
Retailer 8$974 USD
Retailer 20$1,256 USD
Retailer 10$1,268 USD
Retailer 2$1,309 USD
Retailer 6$1,395 USD
Retailer 16$1,430 USD
Retailer 12$1,571 USD
Retailer 19$1,584 USD
Retailer 5$2,135 USD
Brilliant Earth$2,850 USD

36 data points across 23 retailers

23 retailers$317 USD to $2,850 USD

A
Cheapest Retailer
-
$317 USD
A
Retailer 2
-
$354 USD
View
Final sale: no returns
A
Retailer 3
-
$369 USD
View
A
Retailer 4
-
$394 USD
View
A
Retailer 5
-
$395 USD
View
A
Retailer 6
-
$550 USD
View
A
Retailer 7
-
$633 USD
€603 EUR
View
A
Retailer 8
-
$642 USD
View
A
Retailer 9
-
$678 USD
ZAR 10,951 ZAR
View
A
Retailer 10
-
$688 USD
A$1,058 AUD
View
A
Retailer 11
-
$697 USD
£549 GBP
View
A
Retailer 12
-
$919 USD
View
A
Retailer 13
-
$920 USD
A$1,415 AUD
View
B+
Retailer 14
-
$974 USD
View
B+
Retailer 15
-
$1,256 USD
SGD 1,697 SGD
View
B+
Retailer 16
-
$1,268 USD
View
B+
Retailer 17
-
$1,309 USD
View
B+
Retailer 18
-
$1,395 USD
View
Retailer 19
-
$1,430 USD
A$2,200 AUD
View
Price last confirmed 24 days ago
B+
Retailer 20
-
$1,571 USD
View
B+
Retailer 21
-
$1,584 USD
£1,247 GBP
View
Retailer 22
-
$2,135 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
20834905A · Oct 29
$2,850 USD
View
22 more retailers have this diamond
Prices start from $317 USDSave up to $2,533 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
$317 USD