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Heart|Lab Grown|IGI

2.99ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG843670791

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843670791

Diamond specifications and retailer prices

From £753 GBP
As of November 2, 2026
Save £7,740 GBP (91%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £8,493 GBP at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 2.99ct lab-grown heart diamond

This 2.99ct lab-grown heart sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843670791 or 843670791. Listed at 17 retailers as of November 1, 2026, with prices from £753 to £8,493, a £7,740 spread on the same certified stone. Novita Diamonds lists it at £8,493. 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

2.99
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843670791
Dimensions9.20 × 9.57 × 5.74 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
9.20 mm9.57 mm2.99 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843670791
Side View
Table 58.0%Crown 36.8°Girdle: STK-THKPavilion 40°Culet: NoneDepth 60.0%

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: Nov 2
Current: £8,493 GBP|Low: £753 GBP|High: £8,493 GBP|Avg: £2,713 GBP
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 3, 2026
Retailer 16£753 GBP
Retailer 6£819 GBP
Retailer 18£1,001 GBP
Retailer 14£1,003 GBP
Retailer 2£1,059 GBP
Retailer 17£1,395 GBP
Retailer 13£1,568 GBP
Retailer 5£1,808 GBP
Retailer 3£1,825 GBP
Retailer 8£2,030 GBP
Retailer 12£2,288 GBP
Retailer 9£2,854 GBP
Retailer 11£3,098 GBP
Retailer 10£3,738 GBP
Retailer 7£5,591 GBP
Retailer 15£6,182 GBP
Retailer 4£6,689 GBP
Novita Diamonds£8,493 GBP

20 data points across 18 retailers

17 retailers£753 GBP to £8,493 GBP

A+
Cheapest Retailer
-
£753 GBP
A
Retailer 2
-
£819 GBP
View
A
Retailer 3
-
£1,001 GBP
View
A
Retailer 4
-
£1,003 GBP
View
A
Retailer 5
-
£1,059 GBP
View
A
Retailer 6
-
£1,395 GBP
View
A
Retailer 7
-
£1,568 GBP
View
A
Retailer 8
-
£1,808 GBP
View
A
Retailer 9
-
£1,825 GBP
View
A
Retailer 10
-
£2,030 GBP
View
B+
Retailer 11
-
£2,288 GBP
View
Retailer 12
-
£2,854 GBP
View
Price last confirmed 19 days ago
B+
Retailer 13
-
£3,098 GBP
View
B
Retailer 14
-
£5,591 GBP
View
B
Retailer 15
-
£6,182 GBP
View
B
Retailer 16
-
£6,689 GBP
View
Most Expensive
B
Novita Diamonds
cert_843670791 · Nov 1
£8,493 GBP
A$17,523 AUD
View
16 more retailers have this diamond
Prices start from £753 GBPSave up to £7,740 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+
2.99ct Heart
£753 GBP