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Heart|Lab Grown|IGI

1.55ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG700579357

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG700579357

Diamond specifications and retailer prices

From £203 GBP
As of November 2, 2026
Save £855 GBP (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,245 GBP at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG700579357 or 700579357. Listed at 22 retailers as of November 2, 2026, with a 421% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700579357
Dimensions6.84 × 7.88 × 4.80 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm7.88 mm1.55 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700579357
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

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: £1,245 GBP|Low: £203 GBP|High: £1,245 GBP|Avg: £596 GBP|+0.4%
Novita Diamonds
Retailer 2
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Retailer 21
November 4, 2026
Retailer 21£203 GBP
Retailer 12£226 GBP
Retailer 13£235 GBP
Retailer 5£251 GBP
Retailer 18£251 GBP
Retailer 16£265 GBP
Retailer 15£370 GBP
Retailer 9£416 GBP
Retailer 19£433 GBP
Retailer 2£438 GBP
Retailer 8£502 GBP
Retailer 3£509 GBP
Retailer 7£527 GBP
Retailer 17£589 GBP
Retailer 6£773 GBP
Retailer 4£808 GBP
Retailer 14£845 GBP
Retailer 11£967 GBP
Retailer 20£1,007 GBP
Retailer 10£1,058 GBP
Novita Diamonds£1,245 GBP

36 data points across 21 retailers

22 retailers£203 GBP to £1,058 GBP

A
Cheapest Retailer
-
£203 GBP
A
Retailer 2
-
£226 GBP
View
Final sale: no returns
A
Retailer 3
-
£235 GBP
View
Retailer 4
-
£251 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£251 GBP
View
A
Retailer 6
-
£265 GBP
View
A
Retailer 7
-
£370 GBP
View
A
Retailer 8
-
£416 GBP
View
A
Retailer 9
-
£433 GBP
View
A
Retailer 10
-
£438 GBP
View
B+
Retailer 11
-
£502 GBP
View
B+
Retailer 12
-
£509 GBP
View
B+
Retailer 13
-
£527 GBP
View
B+
Retailer 14
-
£589 GBP
View
B
Retailer 15
-
£773 GBP
View
B+
Retailer 16
-
£808 GBP
View
B
Retailer 17
-
£845 GBP
View
B+
Retailer 18
-
£967 GBP
View
B
Retailer 19
-
£1,007 GBP
View
Retailer 20
-
£1,016 GBP
View
Price last confirmed 24 days ago
B
Retailer 21
-
£1,058 GBP
View
Most Expensive
Novita Diamonds
cert_700579357 · Oct 8
£1,245 GBP
A$2,585 AUD
View
Price last confirmed 28 days ago
21 more retailers have this diamond
Prices start from £203 GBPSave up to £855 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
1.55ct Heart
£203 GBP