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Heart|Lab Grown|IGI

1.07ct D SI1 Heart Lab Grown Diamond

VG • D/SI1 • IGI LG849668494

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG849668494

Diamond specifications and retailer prices

From £125 GBP
As of November 6, 2026
Save £675 GBP (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £799 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.07ct lab-grown heart diamond

This 1.07ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG849668494 or 849668494. Listed at 9 retailers as of November 6, 2026, with prices from £125 to £799, a £675 spread on the same certified stone. Brilliant Earth lists it at £799. 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

1.07
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849668494
Dimensions6.55 × 7.09 × 3.88 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.55 mm7.09 mm1.07 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG849668494
Side View
Table 68.0%Crown 35.6°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 54.7%

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: Nov 6
Current: £235 GBP|Low: £125 GBP|High: £380 GBP|Avg: £228 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2£125 GBP
Retailer 7£152 GBP
Retailer 3£164 GBP
Retailer 1£235 GBP
Retailer 4£236 GBP
Retailer 5£253 GBP
Retailer 6£262 GBP
Retailer 8£380 GBP

2 data points across 8 retailers

9 retailers£125 GBP to £799 GBP

A
Cheapest Retailer
-
£125 GBP
Final sale: no returns
B+
Retailer 2
-
£152 GBP
View
B+
Retailer 3
-
£164 GBP
View
B+
Retailer 4
-
£235 GBP
View
B+
Retailer 5
-
£236 GBP
View
B+
Retailer 6
-
£253 GBP
View
B+
Retailer 7
-
£262 GBP
View
B
Retailer 8
-
£380 GBP
View
Most Expensive
C
Brilliant Earth
22534096A · Nov 6
£799 GBP
$1,070 USD
View
8 more retailers have this diamond
Prices start from £125 GBPSave up to £675 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
1.07ct Heart
£125 GBP