CaratHunter
Plans
Heart|Lab Grown|IGI

1.25ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG770664488

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG770664488

Diamond specifications and retailer prices

From $284 CAD
$203 USD
As of October 30, 2026
Save $1,303 CAD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,586 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.25ct lab-grown heart diamond

This 1.25ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770664488 or 770664488. Listed at 12 retailers as of October 30, 2026, with prices from $284 to $1,586, a $1,303 spread on the same certified stone. Reve Diamonds lists it at $1,586. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.25
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770664488
Dimensions6.71 × 7.46 × 4.29 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm7.46 mm1.25 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG770664488
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 40°Culet: NoneDepth 57.5%

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 30
Current: $563 CAD|Low: $169 CAD|High: $1,607 CAD|Avg: $857 CAD|+5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 2$169 CAD
Retailer 9$284 CAD
Retailer 6$555 CAD
Retailer 1$563 CAD
Retailer 8$591 CAD
Retailer 7$767 CAD
Retailer 5$901 CAD
Retailer 10$1,088 CAD
Retailer 3$1,159 CAD
Retailer 4$1,480 CAD
Reve Diamonds$1,586 CAD

28 data points across 11 retailers

12 retailers$284 CAD to $1,586 CAD

A
Cheapest Retailer
-
$284 CAD
$203 USD
Final sale: no returns
Retailer 2
-
$302 CAD
$216 USD
View
Price last confirmed 32 days ago
Retailer 3
-
$318 CAD
$228 USD
View
Price last confirmed 34 days ago
B+
Retailer 4
-
$555 CAD
$397 USD
View
B+
Retailer 5
-
$563 CAD
£318 GBP
View
B+
Retailer 6
-
$591 CAD
$423 USD
View
B+
Retailer 7
-
$767 CAD
$549 USD
View
B
Retailer 8
-
$901 CAD
$645 USD
View
B
Retailer 9
-
$1,088 CAD
$779 USD
View
B
Retailer 10
-
$1,159 CAD
$830 USD
View
Retailer 11
-
$1,480 CAD
£834 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Reve Diamonds
FA2468553 · Oct 30
$1,586 CAD
$1,136 USD
View
11 more retailers have this diamond
Prices start from $284 CADSave up to $1,303 CAD

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
1.25ct Heart
$284 CAD