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Heart|Lab Grown|IGI

4.31ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG811634649

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811634649

Diamond specifications and retailer prices

From $5,864 CAD
$4,190 USD
As of October 27, 2026
Save $34,472 CAD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $40,336 CAD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.31ct lab-grown heart diamond

This 4.31ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811634649 or 811634649. Listed at 12 retailers as of October 27, 2026, with prices from $5,864 to $40,336, a $34,472 spread on the same certified stone. Do Amore Diamonds lists it at $40,336. 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

4.31
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811634649
Dimensions10.97 × 9.88 × 6.61 mm
L/W Ratio1.11
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
10.97 mm9.88 mm4.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811634649
Side View
Table 59.0%Crown 36.9°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A+
Exceptional
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: $40,336 CAD|Low: $5,864 CAD|High: $45,193 CAD|Avg: $15,588 CAD|-10.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 7$5,864 CAD
Retailer 13$6,146 CAD
Retailer 9$6,323 CAD
Retailer 12$6,872 CAD
Retailer 3$6,927 CAD
Retailer 10$8,851 CAD
Retailer 11$9,382 CAD
Retailer 8$10,531 CAD
Retailer 2$13,006 CAD
Retailer 5$14,754 CAD
Retailer 6$15,629 CAD
Retailer 4$31,953 CAD
Do Amore Diamonds$40,336 CAD

27 data points across 13 retailers

12 retailers$5,864 CAD to $40,336 CAD

A+
Cheapest Retailer
-
$5,864 CAD
$4,190 USD
A
Retailer 2
-
$6,146 CAD
$4,391 USD
View
A
Retailer 3
-
$6,323 CAD
$4,518 USD
View
A
Retailer 4
-
$6,872 CAD
$4,910 USD
View
A
Retailer 5
-
$6,927 CAD
$4,949 USD
View
A
Retailer 6
-
$8,851 CAD
$6,324 USD
View
A
Retailer 7
-
$9,382 CAD
$6,703 USD
View
A
Retailer 8
-
$10,531 CAD
$7,524 USD
View
A
Retailer 9
-
$13,006 CAD
€8,850 EUR
View
B+
Retailer 10
-
$15,629 CAD
£8,793 GBP
View
B
Retailer 11
-
$31,953 CAD
$22,830 USD
View
Most Expensive
B
Do Amore Diamonds
27-9DF32E853 · Oct 29
$40,336 CAD
$28,820 USD
View
11 more retailers have this diamond
Prices start from $5,864 CADSave up to $34,472 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+
4.31ct Heart
$5,864 CAD