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Heart|Lab Grown|IGI

1.01ct F FL Heart Lab Grown Diamond

GD • F/FL • IGI LG818657596

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818657596

Diamond specifications and retailer prices

From £219 GBP
As of November 5, 2026
Save £819 GBP (79%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,038 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818657596 or 818657596. Listed at 19 retailers as of November 4, 2026, with prices from £219 to £1,038, a £819 spread on the same certified stone. Reve Diamonds lists it at £1,038. 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

1.01
Carat
F
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657596
Dimensions6.31 × 6.77 × 4.03 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.31 mm6.77 mm1.01 ctF / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657596
Side View
Table 59.0%Crown 38.9°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 59.5%

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 5
Current: £459 GBP|Low: £219 GBP|High: £1,249 GBP|Avg: £519 GBP|-18.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
November 5, 2026
Retailer 3£219 GBP
Retailer 5£255 GBP
Retailer 8£256 GBP
Retailer 6£316 GBP
Retailer 13£342 GBP
Retailer 9£363 GBP
Retailer 12£400 GBP
Retailer 11£419 GBP
Retailer 14£444 GBP
Retailer 1£459 GBP
Retailer 2£538 GBP
Retailer 10£612 GBP
Retailer 4£820 GBP
Retailer 7£973 GBP
Reve Diamonds£1,038 GBP

34 data points across 15 retailers

19 retailers£219 GBP to £1,038 GBP

A
Cheapest Retailer
-
£219 GBP
Final sale: no returns
Retailer 2
-
£255 GBP
View
Price last confirmed 28 days ago
A
Retailer 3
-
£256 GBP
View
Retailer 4
-
£296 GBP
View
Price last confirmed 37 days ago
Retailer 5
-
£312 GBP
View
Price last confirmed 41 days ago
Retailer 6
-
£316 GBP
View
Price last confirmed 33 days ago
Retailer 7
-
£316 GBP
View
Price last confirmed 24 days ago
A
Retailer 8
-
£342 GBP
View
B+
Retailer 9
-
£363 GBP
View
A
Retailer 10
-
£400 GBP
View
B+
Retailer 11
-
£419 GBP
View
B+
Retailer 12
-
£444 GBP
View
B+
Retailer 13
-
£459 GBP
View
B+
Retailer 14
-
£538 GBP
View
B
Retailer 15
-
£612 GBP
View
B
Retailer 16
-
£820 GBP
View
B
Retailer 17
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£973 GBP
View
Retailer 18
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£1,016 GBP
View
Price last confirmed 36 days ago
Most Expensive
B
Reve Diamonds
92A0B0480 · Nov 4
£1,038 GBP
$1,401 USD
View
18 more retailers have this diamond
Prices start from £219 GBPSave up to £819 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
1.01ct Heart
£219 GBP