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Heart|Lab Grown|IGI

1.00ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG825667184

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825667184

Diamond specifications and retailer prices

From £292 GBP
$392 USD
As of November 3, 2026
Save £1,557 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,849 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825667184 or 825667184. Listed at 19 retailers as of November 2, 2026, with prices from £292 to £1,849, a £1,557 spread on the same certified stone. Brilliant Earth lists it at £1,849. 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

1.00
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825667184
Dimensions6.29 × 6.88 × 3.92 mm
L/W Ratio1.09
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
6.29 mm6.88 mm1.00 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825667184
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 57.0%

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 3
Current: £1,849 GBP|Low: £292 GBP|High: £1,961 GBP|Avg: £819 GBP|-5.7%
Brilliant Earth
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
November 3, 2026
Retailer 5£292 GBP
Retailer 7£334 GBP
Retailer 11£436 GBP
Retailer 3£441 GBP
Retailer 13£456 GBP
Retailer 10£521 GBP
Retailer 8£559 GBP
Retailer 2£584 GBP
Retailer 4£739 GBP
Retailer 12£799 GBP
Retailer 6£1,074 GBP
Retailer 14£1,249 GBP
Retailer 9£1,268 GBP
Brilliant Earth£1,849 GBP

33 data points across 14 retailers

19 retailers£292 GBP to £1,849 GBP

A
Cheapest Retailer
-
£292 GBP
$392 USD
Final sale: no returns
Retailer 2
-
£303 GBP
$407 USD
View
Price last confirmed 26 days ago
A
Retailer 3
-
£334 GBP
View
Retailer 4
-
£339 GBP
$454 USD
View
Price last confirmed 35 days ago
Retailer 5
-
£377 GBP
$505 USD
View
Price last confirmed 31 days ago
Retailer 6
-
£377 GBP
$505 USD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
£436 GBP
$585 USD
View
B+
Retailer 8
-
£441 GBP
$592 USD
View
B+
Retailer 9
-
£456 GBP
$612 USD
View
B+
Retailer 10
-
£521 GBP
€666 EUR
View
B+
Retailer 11
-
£559 GBP
ZAR 12,121 ZAR
View
B+
Retailer 12
-
£584 GBP
View
B
Retailer 13
-
£739 GBP
$991 USD
View
B
Retailer 14
-
£799 GBP
$1,072 USD
View
B
Retailer 15
-
£1,074 GBP
$1,440 USD
View
Retailer 16
-
£1,210 GBP
$1,623 USD
View
Price last confirmed 29 days ago
B
Retailer 17
-
£1,249 GBP
$1,675 USD
View
B
Retailer 18
-
£1,268 GBP
View
Most Expensive
B
Brilliant Earth
21584174A · Nov 2
£1,849 GBP
$2,480 USD
View
18 more retailers have this diamond
Prices start from £292 GBPSave up to £1,557 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
1.00ct Heart
£292 GBP