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Heart|Lab Grown|IGI

3.54ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG800611923

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG800611923

Diamond specifications and retailer prices

From £2,832 GBP
$3,795 USD
As of October 30, 2026
Save £9,425 GBP (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £12,258 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 3.54ct lab-grown heart diamond

This 3.54ct 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 LG800611923 or 800611923. Listed at 22 retailers as of October 30, 2026, with prices from £2,832 to £12,258, a £9,425 spread on the same certified stone. With Clarity lists it at £12,258. 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

3.54
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800611923
Dimensions10.65 × 9.20 × 6.19 mm
L/W Ratio1.16
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
10.65 mm9.20 mm3.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800611923
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 58.1%

Caratlytics Score

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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: £11,874 GBP|Low: £2,719 GBP|High: £13,891 GBP|Avg: £6,183 GBP|-6.2%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
With Clarity
October 30, 2026
Retailer 19£2,832 GBP
Retailer 6£2,968 GBP
Retailer 7£3,120 GBP
Retailer 8£3,171 GBP
Retailer 3£3,285 GBP
Retailer 18£3,332 GBP
Retailer 5£3,422 GBP
Retailer 15£3,869 GBP
Retailer 17£3,917 GBP
Retailer 4£4,105 GBP
Retailer 13£4,301 GBP
Retailer 16£4,836 GBP
Retailer 14£7,075 GBP
Retailer 12£7,627 GBP
Retailer 2£7,909 GBP
Retailer 9£9,566 GBP
Retailer 10£11,191 GBP
Retailer 11£11,619 GBP
Retailer 1£11,874 GBP
With Clarity£12,013 GBP

40 data points across 20 retailers

22 retailers£2,832 GBP to £12,258 GBP

A
Cheapest Retailer
-
£2,832 GBP
$3,795 USD
A
Retailer 2
-
£2,968 GBP
$3,977 USD
View
A
Retailer 3
-
£3,120 GBP
$4,180 USD
View
A
Retailer 4
-
£3,171 GBP
$4,249 USD
View
Final sale: no returns
Retailer 5
-
£3,285 GBP
$4,402 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
£3,285 GBP
$4,402 USD
View
A
Retailer 7
-
£3,332 GBP
$4,465 USD
View
B+
Retailer 8
-
£3,422 GBP
$4,585 USD
View
B+
Retailer 9
-
£3,869 GBP
HK$40,500 HKD
View
B+
Retailer 10
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£3,917 GBP
$5,249 USD
View
B+
Retailer 11
-
£4,105 GBP
$5,500 USD
View
B+
Retailer 12
-
£4,301 GBP
View
B+
Retailer 13
-
£4,836 GBP
$6,480 USD
View
B+
Retailer 14
-
£7,075 GBP
View
B+
Retailer 15
-
£7,627 GBP
ZAR 165,090 ZAR
View
B+
Retailer 16
-
£7,909 GBP
$10,597 USD
View
B+
Retailer 17
-
£8,281 GBP
$11,095 USD
View
B
Retailer 18
-
£9,566 GBP
$12,818 USD
View
B
Retailer 19
-
£11,191 GBP
SGD 20,263 SGD
View
B
Retailer 20
-
£11,619 GBP
$15,568 USD
View
B
Retailer 21
-
£11,874 GBP
$15,910 USD
View
Most Expensive
B
With Clarity
800611923 · Oct 30
£12,258 GBP
$16,424 USD
View
21 more retailers have this diamond
Prices start from £2,832 GBPSave up to £9,425 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
3.54ct Heart
£2,832 GBP