Heart|Lab Grown|IGI

5.09ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG726523590

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG726523590

Diamond specifications and retailer prices

From £890 GBP
$1,193 USD
As of October 29, 2026
Save £2,241 GBP (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,221 GBP at Taylor and Hart · As of October 15, 2026
View at Taylor and Hart

About this 5.09ct lab-grown heart diamond

This 5.09ct lab-grown heart sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG726523590 or 726523590. Listed at 16 retailers as of October 27, 2026, with a 252% 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

5.09
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG726523590
Dimensions11.86 × 11.86 × 11.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.86 mm11.86 mm5.09 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG726523590
Side View
Table 58.0%Crown 35.1°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 57.5%

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 29
Current: £1,001 GBP|Low: £763 GBP|High: £3,735 GBP|Avg: £1,755 GBP|-0.6%
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
Taylor and Hart
October 30, 2026
Retailer 17£763 GBP
Retailer 5£865 GBP
Retailer 4£890 GBP
Retailer 6£922 GBP
Retailer 15£922 GBP
Retailer 1£1,001 GBP
Retailer 14£1,030 GBP
Retailer 7£1,233 GBP
Retailer 13£1,377 GBP
Retailer 3£1,469 GBP
Retailer 12£1,867 GBP
Retailer 16£1,870 GBP
Retailer 10£1,874 GBP
Retailer 8£1,947 GBP
Retailer 2£2,670 GBP
Retailer 11£3,132 GBP
Taylor and Hart£3,221 GBP
Retailer 9£3,735 GBP

38 data points across 18 retailers

16 retailers£890 GBP to £3,132 GBP

Retailer 1
-
£763 GBP
$1,023 USD
Price last confirmed 28 days ago
Retailer 2
-
£865 GBP
$1,159 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
£890 GBP
$1,193 USD
View
Final sale: no returns
Retailer 4
-
£922 GBP
$1,236 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£1,001 GBP
View
A
Retailer 6
-
£1,030 GBP
$1,380 USD
View
Retailer 7
-
£1,377 GBP
View
Price last confirmed 15 days ago
B+
Retailer 8
-
£1,469 GBP
$1,968 USD
View
Retailer 9
-
£1,729 GBP
$2,316 USD
View
Price last confirmed 30 days ago
Retailer 10
-
£1,867 GBP
A$3,849 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£1,870 GBP
$2,506 USD
View
B+
Retailer 12
-
£1,874 GBP
ZAR 40,554 ZAR
View
B+
Retailer 13
-
£1,947 GBP
$2,609 USD
View
B
Retailer 14
-
£2,670 GBP
$3,578 USD
View
B
Retailer 15
-
£3,132 GBP
View
Most Expensive
Taylor and Hart
GJTTPOZ · Oct 15
£3,221 GBP
$4,315 USD
View
Price last confirmed 15 days ago
15 more retailers have this diamond
Prices start from £890 GBPSave up to £2,241 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
5.09ct Heart
£890 GBP