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Heart|Lab Grown|IGI

3.91ct E VVS2 Heart Lab Grown Diamond

EX • E/VVS2 • IGI LG712529487

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG712529487

Diamond specifications and retailer prices

From £427 GBP
$572 USD
As of October 30, 2026
Save £3,364 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,531 GBP at Queensmith · As of October 16, 2026
View at Queensmith

About this 3.91ct lab-grown heart diamond

This 3.91ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG712529487 or 712529487. Listed at 13 retailers as of October 29, 2026, with a 788% 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

3.91
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712529487
Dimensions9.19 × 10.82 × 6.71 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Top View
9.19 mm10.82 mm3.91 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712529487
Side View
Table 58.0%Crown 36.2°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 62.0%

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: Oct 30
Current: £4,531 GBP|Low: £322 GBP|High: £4,531 GBP|Avg: £1,789 GBP
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5£427 GBP
Retailer 13£478 GBP
Retailer 9£530 GBP
Retailer 8£708 GBP
Retailer 6£881 GBP
Retailer 11£1,188 GBP
Retailer 2£1,235 GBP
Retailer 10£1,537 GBP
Retailer 3£1,720 GBP
Retailer 12£1,991 GBP
Retailer 7£2,316 GBP
Retailer 4£3,791 GBP
Queensmith£4,531 GBP

24 data points across 13 retailers

13 retailers£427 GBP to £3,791 GBP

A
Cheapest Retailer
-
£427 GBP
$572 USD
A
Retailer 2
-
£478 GBP
$640 USD
View
Final sale: no returns
A
Retailer 3
-
£530 GBP
$710 USD
View
B+
Retailer 4
-
£708 GBP
$948 USD
View
A
Retailer 5
-
£881 GBP
View
A
Retailer 6
-
£1,188 GBP
$1,592 USD
View
A
Retailer 7
-
£1,235 GBP
A$2,546 AUD
View
B+
Retailer 8
-
£1,537 GBP
$2,060 USD
View
B+
Retailer 9
-
£1,720 GBP
$2,305 USD
View
B+
Retailer 10
-
£1,991 GBP
$2,668 USD
View
B+
Retailer 11
-
£2,316 GBP
View
B
Retailer 12
-
£3,791 GBP
$5,080 USD
View
Most Expensive
Queensmith
LG712529487 · Oct 16
£4,531 GBP
View
Price last confirmed 14 days ago
12 more retailers have this diamond
Prices start from £427 GBPSave up to £3,364 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
3.91ct Heart
£427 GBP