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Heart|Lab Grown|IGI

0.97ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG638417556

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG638417556

Diamond specifications and retailer prices

From £224 GBP
As of November 4, 2026
Save £1,020 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,244 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 0.97ct lab-grown heart diamond

This 0.97ct 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 LG638417556 or 638417556. Listed at 17 retailers as of November 4, 2026, with prices from £224 to £1,244, a £1,020 spread on the same certified stone. Brilliant Earth lists it at £1,244. 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

0.97
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638417556
Dimensions6.06 × 6.99 × 4.12 mm
L/W Ratio1.15
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
6.06 mm6.99 mm0.97 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG638417556
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 58.9%

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 4
Current: £1,244 GBP|Low: £219 GBP|High: £1,252 GBP|Avg: £551 GBP|-0.6%
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
Retailer 16
November 5, 2026
Retailer 6£224 GBP
Retailer 12£251 GBP
Retailer 4£261 GBP
Retailer 14£279 GBP
Retailer 8£283 GBP
Retailer 3£374 GBP
Retailer 15£454 GBP
Retailer 5£477 GBP
Retailer 2£490 GBP
Retailer 11£505 GBP
Retailer 10£856 GBP
Retailer 16£896 GBP
Retailer 7£930 GBP
Retailer 13£997 GBP
Retailer 9£1,113 GBP
Brilliant Earth£1,244 GBP

44 data points across 16 retailers

17 retailers£224 GBP to £1,244 GBP

A
Cheapest Retailer
-
£224 GBP
A
Retailer 2
-
£251 GBP
View
Final sale: no returns
A
Retailer 3
-
£261 GBP
View
A
Retailer 4
-
£279 GBP
View
Retailer 5
-
£283 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£374 GBP
View
A
Retailer 7
-
£454 GBP
View
A
Retailer 8
-
£477 GBP
View
A
Retailer 9
-
£490 GBP
View
A
Retailer 10
-
£505 GBP
View
B+
Retailer 11
-
£726 GBP
View
B+
Retailer 12
-
£856 GBP
View
B
Retailer 13
-
£896 GBP
View
B
Retailer 14
-
£930 GBP
View
B
Retailer 15
-
£997 GBP
View
B
Retailer 16
-
£1,113 GBP
View
Most Expensive
B
Brilliant Earth
11259114A · Nov 4
£1,244 GBP
$1,680 USD
View
16 more retailers have this diamond
Prices start from £224 GBPSave up to £1,020 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
0.97ct Heart
£224 GBP