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Heart|Lab Grown|IGI

4.51ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG794623406

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG794623406

Diamond specifications and retailer prices

From $4,478 USD
As of October 30, 2026
Save $26,332 USD (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $30,810 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown heart diamond

This 4.51ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG794623406 or 794623406. Listed at 9 retailers as of October 29, 2026, with prices from $4,478 to $30,810, a $26,332 spread on the same certified stone. Do Amore Diamonds lists it at $30,810. 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

4.51
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794623406
Dimensions11.84 × 9.95 × 6.57 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizePointed
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
11.84 mm9.95 mm4.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794623406
Side View
Table 59.0%Crown 35.3°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 55.5%

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: $30,810 USD|Low: $4,478 USD|High: $39,870 USD|Avg: $16,185 USD|-22.7%
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 30, 2026
Retailer 12$4,478 USD
Retailer 10$4,693 USD
Retailer 9$6,697 USD
Retailer 7$6,700 USD
Retailer 8$6,807 USD
Retailer 11$8,035 USD
Retailer 6$11,730 USD
Retailer 4$13,252 USD
Retailer 2$14,510 USD
Retailer 13$16,720 USD
Retailer 3$23,364 USD
Do Amore Diamonds$30,810 USD
Retailer 5$38,980 USD

21 data points across 13 retailers

9 retailers$4,478 USD to $30,810 USD

A
Cheapest Retailer
-
$4,478 USD
A
Retailer 2
-
$4,693 USD
View
A
Retailer 3
-
$6,697 USD
View
A
Retailer 4
-
$6,700 USD
View
A
Retailer 5
-
$6,807 USD
View
A
Retailer 6
-
$8,035 USD
View
B+
Retailer 7
-
$11,730 USD
£9,236 GBP
View
B+
Retailer 8
-
$14,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-84D286800 · Oct 29
$30,810 USD
View
8 more retailers have this diamond
Prices start from $4,478 USDSave up to $26,332 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
4.51ct Heart
$4,478 USD