Round|Lab Grown|IGI

3.55ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG837620521

Certificate IGI LG837620521

Diamond specifications and retailer prices

From $1,411 USD
Save $8,489 USD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,900 USD at Brilliant Earth
View at Brilliant Earth

About this 3.55ct lab-grown round diamond

This 3.55ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837620521 or 837620521. Listed at 10 retailers, with prices from $1,411 to $9,900 at Brilliant Earth, a $8,489 spread on the same certified stone. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.55
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837620521
Dimensions9.88 × 9.82 × 5.97 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
9.88 mm9.82 mm3.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837620521
Side View
Table 58.0%Crown 33.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $9,900 USD|Low: $1,411 USD|High: $9,900 USD|Avg: $3,123 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 1, 2026
Retailer 6$1,411 USD
Retailer 5$1,635 USD
Retailer 4$1,800 USD
Retailer 8$2,061 USD
Retailer 10$2,090 USD
Retailer 2$2,306 USD
Retailer 7$2,725 USD
Retailer 9$3,305 USD
Retailer 3$4,754 USD
Brilliant Earth$9,900 USD

5 data points across 10 retailers

10 retailers$1,411 USD to $9,900 USD

B+
Cheapest Retailer
-
$1,411 USD
B+
Retailer 2
-
$1,635 USD
View
B+
Retailer 3
-
$1,800 USD
£1,417 GBP
View
B+
Retailer 4
-
$2,060 USD
£1,622 GBP
View
B+
Retailer 5
-
$2,090 USD
View
B+
Retailer 6
-
$2,306 USD
€2,196 EUR
View
B+
Retailer 7
-
$2,725 USD
View
B+
Retailer 8
-
$3,305 USD
A$5,085 AUD
View
B
Retailer 9
-
$4,754 USD
£3,743 GBP
View
Most Expensive
C
Brilliant Earth
21574002A · Oct 1
$9,900 USD
View
9 more retailers have this diamond
Prices start from $1,411 USDSave up to $8,489 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.

B+
3.55ct Round
$1,411 USD