Radiant|Lab Grown|IGI

3.77ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG815616329

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG815616329

Diamond specifications and retailer prices

From $882 USD
As of October 29, 2026
Save $4,908 USD (85%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,790 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.77ct lab-grown radiant diamond

This 3.77ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG815616329 or 815616329. Listed at 7 retailers as of October 29, 2026, with prices from $882 to $5,790, a $4,908 spread on the same certified stone. Brilliant Earth lists it at $5,790. 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

3.77
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815616329
Dimensions10.55 × 7.81 × 5.30 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.55 mm7.81 mm3.77 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815616329
Side View
Table 67.0%Crown 45.8°Girdle: MediumPavilion 36.4°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
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: Oct 29
Current: $5,790 USD|Low: $393 USD|High: $5,790 USD|Avg: $1,707 USD|+3.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$545 USD
Retailer 6$882 USD
Retailer 8$971 USD
Retailer 3$997 USD
Retailer 7$1,084 USD
Retailer 4$1,419 USD
Retailer 5$1,874 USD
Retailer 10$1,989 USD
Retailer 2$4,403 USD
Brilliant Earth$5,790 USD

14 data points across 10 retailers

7 retailers$882 USD to $5,790 USD

A
Cheapest Retailer
-
$882 USD
B+
Retailer 2
-
$997 USD
View
A
Retailer 3
-
$1,084 USD
€1,032 EUR
View
A
Retailer 4
-
$1,419 USD
View
B+
Retailer 5
-
$1,874 USD
View
B
Retailer 6
-
$4,403 USD
View
Most Expensive
B
Brilliant Earth
22171034A · Oct 29
$5,790 USD
View
6 more retailers have this diamond
Prices start from $882 USDSave up to $4,908 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
3.77ct Radiant
$882 USD