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Heart|Lab Grown|IGI

1.65ct F VVS1 Heart Lab Grown Diamond

EX • F/VVS1 • IGI LG834618383

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG834618383

Diamond specifications and retailer prices

From £205 GBP
$275 USD
As of November 1, 2026
Save £244 GBP (54%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £449 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.65ct lab-grown heart diamond

This 1.65ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG834618383 or 834618383. Listed at 2 retailers as of November 1, 2026, with prices from £205 to £449, a £244 spread on the same certified stone. 77 Diamonds lists it at £449. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG834618383
Dimensions7.27 × 8.31 × 4.75 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.27 mm8.31 mm1.65 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG834618383
Side View
Table 58.0%Crown 34.6°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 57.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £449 GBP|Low: £205 GBP|High: £845 GBP|Avg: £502 GBP|-0.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2£205 GBP
Retailer 5£369 GBP
Retailer 6£396 GBP
77 Diamonds£449 GBP
Retailer 4£544 GBP
Retailer 3£845 GBP

38 data points across 6 retailers

2 retailers£205 GBP to £449 GBP

A
Cheapest Retailer
-
£205 GBP
$275 USD
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSTVSECBQ8SAE · Nov 2
£449 GBP
View
1 more retailer has this diamond
Prices start from £205 GBPSave up to £244 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
1.65ct Heart
£205 GBP