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Heart|Lab Grown|IGI

3.00ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG754594407

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG754594407

Diamond specifications and retailer prices

From £668 GBP
$895 USD
As of October 30, 2026
Save £11,061 GBP (94%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £11,729 GBP at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 3ct lab-grown heart diamond

This 3ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754594407 or 754594407. Listed at 16 retailers as of October 30, 2026, with prices from £668 to £11,729, a £11,061 spread on the same certified stone. Novita Diamonds lists it at £11,729. 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

3.00
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594407
Dimensions9.11 × 9.66 × 5.95 mm
L/W Ratio1.06
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
9.11 mm9.66 mm3.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594407
Side View
Table 60.0%Crown 37.2°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 61.6%

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: £11,729 GBP|Low: £668 GBP|High: £12,156 GBP|Avg: £3,689 GBP|-1.3%
Novita Diamonds
Retailer 2
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 1, 2026
Retailer 17£668 GBP
Retailer 12£911 GBP
Retailer 5£1,161 GBP
Retailer 8£1,221 GBP
Retailer 2£1,243 GBP
Retailer 6£1,314 GBP
Retailer 15£1,396 GBP
Retailer 11£1,603 GBP
Retailer 13£1,629 GBP
Retailer 7£1,881 GBP
Retailer 14£1,932 GBP
Retailer 4£2,246 GBP
Retailer 3£3,921 GBP
Retailer 10£5,933 GBP
Retailer 16£6,224 GBP
Retailer 9£6,595 GBP
Novita Diamonds£11,729 GBP

34 data points across 17 retailers

16 retailers£668 GBP to £11,729 GBP

A
Cheapest Retailer
-
£668 GBP
$895 USD
A
Retailer 2
-
£911 GBP
$1,220 USD
View
A
Retailer 3
-
£1,161 GBP
$1,555 USD
View
A
Retailer 4
-
£1,221 GBP
$1,636 USD
View
Final sale: no returns
A
Retailer 5
-
£1,243 GBP
$1,666 USD
View
A
Retailer 6
-
£1,314 GBP
$1,760 USD
View
A
Retailer 7
-
£1,396 GBP
€1,781 EUR
View
A
Retailer 8
-
£1,603 GBP
$2,148 USD
View
A
Retailer 9
-
£1,629 GBP
$2,183 USD
View
A
Retailer 10
-
£1,881 GBP
A$3,878 AUD
View
A
Retailer 11
-
£1,932 GBP
A$3,982 AUD
View
A
Retailer 12
-
£2,246 GBP
$3,009 USD
View
B+
Retailer 13
-
£3,921 GBP
View
B+
Retailer 14
-
£5,933 GBP
$7,950 USD
View
B+
Retailer 15
-
£6,224 GBP
$8,340 USD
View
Most Expensive
B
Novita Diamonds
cert_754594407 · Nov 1
£11,729 GBP
A$24,178 AUD
View
15 more retailers have this diamond
Prices start from £668 GBPSave up to £11,061 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
3.00ct Heart
£668 GBP