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Heart|Lab Grown|IGI

1.00ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG813621316

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG813621316

Diamond specifications and retailer prices

From £175 GBP
As of November 4, 2026
Save £1,507 GBP (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,682 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813621316 or 813621316. Listed at 17 retailers as of November 2, 2026, with prices from £175 to £1,682, a £1,507 spread on the same certified stone. Do Amore Diamonds lists it at £1,682. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813621316
Dimensions6.82 × 6.53 × 3.97 mm
L/W Ratio1.04
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
6.82 mm6.53 mm1.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813621316
Side View
Table 57.0%Crown 34.8°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 58.2%

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 4
Current: £1,682 GBP|Low: £168 GBP|High: £1,682 GBP|Avg: £614 GBP
Do Amore Diamonds
Retailer 2
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November 4, 2026
Retailer 16£175 GBP
Retailer 18£203 GBP
Retailer 13£246 GBP
Retailer 3£286 GBP
Retailer 8£290 GBP
Retailer 17£326 GBP
Retailer 2£380 GBP
Retailer 10£412 GBP
Retailer 6£473 GBP
Retailer 7£501 GBP
Retailer 15£581 GBP
Retailer 5£690 GBP
Retailer 20£699 GBP
Retailer 12£767 GBP
Retailer 19£769 GBP
Retailer 11£777 GBP
Retailer 9£913 GBP
Retailer 14£959 GBP
Retailer 4£1,043 GBP
Do Amore Diamonds£1,682 GBP

29 data points across 20 retailers

17 retailers£175 GBP to £1,682 GBP

A
Cheapest Retailer
-
£175 GBP
A
Retailer 2
-
£203 GBP
View
A
Retailer 3
-
£246 GBP
View
A
Retailer 4
-
£286 GBP
View
A
Retailer 5
-
£290 GBP
View
Retailer 6
-
£326 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
£380 GBP
View
Retailer 8
-
£473 GBP
View
Price last confirmed 23 days ago
B+
Retailer 9
-
£501 GBP
View
Retailer 10
-
£581 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£690 GBP
View
B
Retailer 12
-
£699 GBP
View
B+
Retailer 13
-
£769 GBP
View
B
Retailer 14
-
£913 GBP
View
B+
Retailer 15
-
£959 GBP
View
Retailer 16
-
£1,043 GBP
View
Price last confirmed 28 days ago
Most Expensive
B
Do Amore Diamonds
27-244A27C97 · Nov 2
£1,682 GBP
$2,270 USD
View
16 more retailers have this diamond
Prices start from £175 GBPSave up to £1,507 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
£175 GBP