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Heart|Lab Grown|IGI

0.98ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG638415529

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG638415529

Diamond specifications and retailer prices

From £227 GBP
As of November 4, 2026
Save £1,033 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,259 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 0.98ct lab-grown heart diamond

This 0.98ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG638415529 or 638415529. Listed at 20 retailers as of November 4, 2026, with prices from £227 to £1,259, a £1,033 spread on the same certified stone. Brilliant Earth lists it at £1,259. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.98
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638415529
Dimensions6.23 × 6.98 × 4.09 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
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
6.23 mm6.98 mm0.98 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638415529
Side View
Table 62.0%Crown 38.4°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 58.6%

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 4
Current: £1,259 GBP|Low: £227 GBP|High: £1,259 GBP|Avg: £598 GBP
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
Retailer 15
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Retailer 17
November 5, 2026
Retailer 8£227 GBP
Retailer 12£253 GBP
Retailer 6£263 GBP
Retailer 17£281 GBP
Retailer 10£343 GBP
Retailer 5£378 GBP
Retailer 3£457 GBP
Retailer 7£481 GBP
Retailer 2£495 GBP
Retailer 15£510 GBP
Retailer 13£707 GBP
Retailer 11£864 GBP
Retailer 4£904 GBP
Retailer 9£939 GBP
Retailer 16£1,007 GBP
Retailer 14£1,127 GBP
Brilliant Earth£1,259 GBP

30 data points across 17 retailers

20 retailers£227 GBP to £1,259 GBP

A
Cheapest Retailer
-
£227 GBP
A
Retailer 2
-
£253 GBP
View
Final sale: no returns
A
Retailer 3
-
£263 GBP
View
A
Retailer 4
-
£281 GBP
View
Retailer 5
-
£285 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£343 GBP
View
A
Retailer 7
-
£378 GBP
View
A
Retailer 8
-
£457 GBP
View
A
Retailer 9
-
£481 GBP
View
A
Retailer 10
-
£495 GBP
View
A
Retailer 11
-
£510 GBP
View
B+
Retailer 12
-
£707 GBP
View
B+
Retailer 13
-
£733 GBP
View
B+
Retailer 14
-
£864 GBP
View
B+
Retailer 15
-
£904 GBP
View
B
Retailer 16
-
£939 GBP
View
Retailer 17
-
£947 GBP
View
Price last confirmed 149 days ago
B
Retailer 18
-
£1,007 GBP
View
B+
Retailer 19
-
£1,127 GBP
View
Most Expensive
B
Brilliant Earth
11258856A · Nov 4
£1,259 GBP
$1,700 USD
View
19 more retailers have this diamond
Prices start from £227 GBPSave up to £1,033 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
0.98ct Heart
£227 GBP