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Heart|Lab Grown|IGI

4.38ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG800684553

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG800684553

Diamond specifications and retailer prices

From £3,162 GBP
$4,237 USD
As of October 30, 2026
Save £18,683 GBP (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £21,845 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.38ct lab-grown heart diamond

This 4.38ct 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 LG800684553 or 800684553. Listed at 13 retailers as of October 30, 2026, with prices from £3,162 to £21,845, a £18,683 spread on the same certified stone. Do Amore Diamonds lists it at £21,845. 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

4.38
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800684553
Dimensions10.48 × 10.86 × 6.52 mm
L/W Ratio1.04
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
10.48 mm10.86 mm4.38 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800684553
Side View
Table 58.0%Crown 37.1°Girdle: THK-VTKPavilion 39.5°Culet: NoneDepth 60.0%

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 30
Current: £21,845 GBP|Low: £3,162 GBP|High: £24,472 GBP|Avg: £8,050 GBP|-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
Retailer 14
October 30, 2026
Retailer 7£3,162 GBP
Retailer 3£3,328 GBP
Retailer 11£3,423 GBP
Retailer 14£3,717 GBP
Retailer 4£3,802 GBP
Retailer 5£4,185 GBP
Retailer 12£4,793 GBP
Retailer 13£5,080 GBP
Retailer 10£5,701 GBP
Retailer 8£7,048 GBP
Retailer 6£7,989 GBP
Retailer 9£8,463 GBP
Retailer 2£12,120 GBP
Do Amore Diamonds£21,845 GBP

30 data points across 14 retailers

13 retailers£3,162 GBP to £21,845 GBP

A
Cheapest Retailer
-
£3,162 GBP
$4,237 USD
A
Retailer 2
-
£3,328 GBP
$4,459 USD
View
A
Retailer 3
-
£3,423 GBP
$4,586 USD
View
A
Retailer 4
-
£3,717 GBP
$4,980 USD
View
A
Retailer 5
-
£3,802 GBP
$5,094 USD
View
A
Retailer 6
-
£4,185 GBP
$5,608 USD
View
Final sale: no returns
A
Retailer 7
-
£4,793 GBP
$6,422 USD
View
A
Retailer 8
-
£5,080 GBP
$6,807 USD
View
A
Retailer 9
-
£5,701 GBP
$7,639 USD
View
B+
Retailer 10
-
£7,048 GBP
€8,994 EUR
View
B+
Retailer 11
-
£8,463 GBP
View
B+
Retailer 12
-
£12,120 GBP
$16,240 USD
View
Most Expensive
B
Do Amore Diamonds
27-A309CFBE5 · Oct 30
£21,845 GBP
$29,270 USD
View
12 more retailers have this diamond
Prices start from £3,162 GBPSave up to £18,683 GBP

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
4.38ct Heart
£3,162 GBP