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Heart|Lab Grown|IGI

3.51ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG843692584

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843692584

Diamond specifications and retailer prices

From £1,345 GBP
$1,805 USD
As of November 1, 2026
Save £3,310 GBP (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,847 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.51ct lab-grown heart diamond

This 3.51ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843692584 or 843692584. Listed at 13 retailers as of November 1, 2026, with a 246% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.51
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843692584
Dimensions10.48 × 9.16 × 6.13 mm
L/W Ratio1.14
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 mm9.16 mm3.51 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843692584
Side View
Table 57.0%Crown 38.5°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 58.5%

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: Nov 1
Current: £7,847 GBP|Low: £1,345 GBP|High: £7,847 GBP|Avg: £2,853 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 12£1,345 GBP
Retailer 13£1,472 GBP
Retailer 4£1,612 GBP
Retailer 9£1,782 GBP
Retailer 6£1,974 GBP
Retailer 8£2,192 GBP
Retailer 7£2,464 GBP
Retailer 11£3,146 GBP
Retailer 2£3,239 GBP
Retailer 5£3,583 GBP
Retailer 10£3,980 GBP
Retailer 3£4,655 GBP
Brilliant Earth£7,847 GBP

20 data points across 13 retailers

13 retailers£1,345 GBP to £4,655 GBP

A
Cheapest Retailer
-
£1,345 GBP
$1,805 USD
Final sale: no returns
B+
Retailer 2
-
£1,472 GBP
$1,975 USD
View
B+
Retailer 3
-
£1,612 GBP
HK$16,900 HKD
View
B+
Retailer 4
-
£1,782 GBP
View
B+
Retailer 5
-
£1,974 GBP
View
B+
Retailer 6
-
£2,192 GBP
$2,942 USD
View
B+
Retailer 7
-
£2,464 GBP
$3,307 USD
View
B
Retailer 8
-
£3,146 GBP
A$6,496 AUD
View
B+
Retailer 9
-
£3,239 GBP
ZAR 70,210 ZAR
View
B
Retailer 10
-
£3,583 GBP
$4,808 USD
View
B
Retailer 11
-
£3,980 GBP
View
B
Retailer 12
-
£4,655 GBP
SGD 8,441 SGD
View
Most Expensive
Brilliant Earth
21813260A · Nov 2
£7,847 GBP
$10,530 USD
View
Price under review
12 more retailers have this diamond
Prices start from £1,345 GBPSave up to £3,310 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
3.51ct Heart
£1,345 GBP