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Heart|Lab Grown|IGI

4.90ct E SI1 Heart Lab Grown Diamond

VG • E/SI1 • IGI LG843671405

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843671405

Diamond specifications and retailer prices

From $682 USD
£537 GBP
As of October 27, 2026
Save $2,531 USD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,320 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.9ct lab-grown heart diamond

This 4.9ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG843671405 or 843671405. Listed at 11 retailers as of October 26, 2026, with a 371% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.90
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843671405
Dimensions10.24 × 11.90 × 6.77 mm
L/W Ratio1.16
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.24 mm11.90 mm4.90 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843671405
Side View
Table 64.0%Crown 34.2°Girdle: STK-VTKPavilion 37.8°Culet: NoneDepth 56.9%

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 27
Current: $682 USD|Low: $680 USD|High: $3,213 USD|Avg: $1,503 USD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 27, 2026
Retailer 1$682 USD
Retailer 10$735 USD
Retailer 6$883 USD
Retailer 8$940 USD
Retailer 3$1,210 USD
Retailer 4$1,242 USD
Retailer 7$1,946 USD
Retailer 9$2,170 USD
Retailer 2$2,571 USD
Retailer 5$3,213 USD

6 data points across 10 retailers

11 retailers$682 USD to $3,213 USD

A
Cheapest Retailer
-
$682 USD
£537 GBP
A
Retailer 2
-
$735 USD
View
Final sale: no returns
B+
Retailer 3
-
$883 USD
HK$6,900 HKD
View
B+
Retailer 4
-
$940 USD
View
B+
Retailer 5
-
$1,210 USD
£953 GBP
View
B+
Retailer 6
-
$1,242 USD
View
B
Retailer 7
-
$1,946 USD
View
B
Retailer 8
-
$2,170 USD
View
B
Retailer 9
-
$2,571 USD
SGD 3,474 SGD
View
B
Retailer 10
-
$3,213 USD
£2,530 GBP
View
Most Expensive
Brilliant Earth
22235130A · Oct 29
$7,320 USD
View
Price under review
10 more retailers have this diamond
Prices start from $682 USDSave up to $2,531 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
4.90ct Heart
$682 USD