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Heart|Lab Grown|IGI

1.28ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG838621589

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG838621589

Diamond specifications and retailer prices

From £173 GBP
$232 USD
As of November 2, 2026
Save £949 GBP (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,122 GBP at Michael Trio · As of November 3, 2026
View at Michael Trio

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG838621589 or 838621589. Listed at 20 retailers as of November 2, 2026, with prices from £173 to £1,122, a £949 spread on the same certified stone. Michael Trio lists it at £1,122. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838621589
Dimensions6.94 × 7.34 × 4.42 mm
L/W Ratio1.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.94 mm7.34 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838621589
Side View
Table 61.0%Crown 34.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.2%

Caratlytics Score

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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: Nov 2
Current: £1,122 GBP|Low: £173 GBP|High: £1,140 GBP|Avg: £488 GBP|-1.5%
Michael Trio
Retailer 2
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November 3, 2026
Retailer 16£173 GBP
Retailer 20£194 GBP
Retailer 18£200 GBP
Retailer 2£213 GBP
Retailer 11£216 GBP
Retailer 17£244 GBP
Retailer 3£289 GBP
Retailer 7£343 GBP
Retailer 19£370 GBP
Retailer 14£400 GBP
Retailer 5£451 GBP
Retailer 12£484 GBP
Retailer 9£527 GBP
Retailer 4£689 GBP
Retailer 15£692 GBP
Retailer 13£725 GBP
Retailer 6£743 GBP
Retailer 8£837 GBP
Retailer 10£867 GBP
Michael Trio£1,122 GBP

17 data points across 20 retailers

20 retailers£173 GBP to £1,122 GBP

A
Cheapest Retailer
-
£173 GBP
$232 USD
A
Retailer 2
-
£194 GBP
$260 USD
View
Final sale: no returns
A
Retailer 3
-
£200 GBP
$269 USD
View
A
Retailer 4
-
£213 GBP
$286 USD
View
Retailer 5
-
£216 GBP
$290 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
£244 GBP
View
A
Retailer 7
-
£289 GBP
$388 USD
View
A
Retailer 8
-
£343 GBP
€439 EUR
View
A
Retailer 9
-
£370 GBP
ZAR 8,020 ZAR
View
A
Retailer 10
-
£400 GBP
View
B+
Retailer 11
-
£451 GBP
$605 USD
View
B+
Retailer 12
-
£484 GBP
$650 USD
View
B+
Retailer 13
-
£527 GBP
A$1,088 AUD
View
B+
Retailer 14
-
£689 GBP
$924 USD
View
B+
Retailer 15
-
£692 GBP
$928 USD
View
B+
Retailer 16
-
£725 GBP
$973 USD
View
B+
Retailer 17
-
£743 GBP
$997 USD
View
B
Retailer 18
-
£837 GBP
A$1,727 AUD
View
B
Retailer 19
-
£867 GBP
View
Most Expensive
B
Michael Trio
9352450990 · Nov 3
£1,122 GBP
SGD 2,035 SGD
View
19 more retailers have this diamond
Prices start from £173 GBPSave up to £949 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
1.28ct Heart
£173 GBP