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Heart|Lab Grown|IGI

1.29ct E VVS1 Heart Lab Grown Diamond

VG • E/VVS1 • IGI LGG1201805

Certificate IGI LGG1201805

Diamond specifications and retailer prices

From £198 GBP
$265 USD
As of October 28, 2026
Save £707 GBP (78%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £905 GBP at Taylor and Hart · As of October 29, 2026
View at Taylor and Hart

About this 1.29ct lab-grown heart diamond

This 1.29ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LGG1201805. Listed at 6 retailers as of October 28, 2026, with prices from £198 to £905, a £707 spread on the same certified stone. Taylor and Hart lists it at £905. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.29
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGG1201805
Dimensions6.91 × 7.63 × 4.33 mm
L/W Ratio1.10
Top View
6.91 mm7.63 mm1.29 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LGG1201805
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 56.7%

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 28
Current: £297 GBP|Low: £140 GBP|High: £596 GBP|Avg: £390 GBP|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 5£198 GBP
Retailer 1£297 GBP
Retailer 4£400 GBP
Retailer 2£462 GBP
Retailer 3£589 GBP

39 data points across 5 retailers

6 retailers£198 GBP to £905 GBP

A
Cheapest Retailer
-
£198 GBP
$265 USD
Final sale: no returns
A
Retailer 2
-
£297 GBP
View
B+
Retailer 3
-
£400 GBP
$536 USD
View
B+
Retailer 4
-
£462 GBP
View
B+
Retailer 5
-
£589 GBP
A$1,215 AUD
View
Most Expensive
B
Taylor and Hart
KVQKX94 · Oct 29
£905 GBP
$1,212 USD
View
5 more retailers have this diamond
Prices start from £198 GBPSave up to £707 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
1.29ct Heart
£198 GBP