CaratHunter
Plans
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 $1,210 NZD
£537 GBP
As of October 27, 2026
Save $5,674 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,884 NZD at Brilliant Earth · As of October 30, 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 10 retailers as of October 27, 2026, with prices from $1,210 to $6,884, a $5,674 spread on the same certified stone. Brilliant Earth lists it at $6,884. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $6,884 NZD|Low: $1,206 NZD|High: $6,884 NZD|Avg: $2,752 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,210 NZD
Retailer 11$1,304 NZD
Retailer 7$1,567 NZD
Retailer 9$1,668 NZD
Retailer 4$2,148 NZD
Retailer 5$2,204 NZD
Retailer 8$3,453 NZD
Retailer 10$3,850 NZD
Retailer 3$4,561 NZD
Retailer 6$5,701 NZD
Brilliant Earth$6,884 NZD

7 data points across 11 retailers

10 retailers$1,210 NZD to $6,884 NZD

A
Cheapest Retailer
-
$1,210 NZD
£537 GBP
B+
Retailer 2
-
$1,567 NZD
HK$6,900 HKD
View
B+
Retailer 3
-
$1,668 NZD
$940 USD
View
B+
Retailer 4
-
$2,148 NZD
£953 GBP
View
B+
Retailer 5
-
$2,204 NZD
$1,242 USD
View
B
Retailer 6
-
$3,453 NZD
$1,946 USD
View
B
Retailer 7
-
$3,850 NZD
$2,170 USD
View
B
Retailer 8
-
$4,561 NZD
SGD 3,474 SGD
View
B
Retailer 9
-
$5,701 NZD
£2,530 GBP
View
Most Expensive
B
Brilliant Earth
22235130A · Oct 30
$6,884 NZD
$3,880 USD
View
9 more retailers have this diamond
Prices start from $1,210 NZDSave up to $5,674 NZD

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
$1,210 NZD