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Heart|Lab Grown|IGI

1.73ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG800676925

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG800676925

Diamond specifications and retailer prices

From £480 GBP
$643 USD
As of October 30, 2026
Save £3,782 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,262 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.73ct lab-grown heart diamond

This 1.73ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800676925 or 800676925. Listed at 15 retailers as of October 30, 2026, with prices from £480 to £4,262, a £3,782 spread on the same certified stone. Do Amore Diamonds lists it at £4,262. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676925
Dimensions7.32 × 8.05 × 4.99 mm
L/W Ratio1.10
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
7.32 mm8.05 mm1.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676925
Side View
Table 57.0%Crown 35.4°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 62.0%

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: Oct 30
Current: £4,262 GBP|Low: £480 GBP|High: £5,538 GBP|Avg: £1,499 GBP|-23.0%
Do Amore Diamonds
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
October 30, 2026
Retailer 11£480 GBP
Retailer 4£522 GBP
Retailer 13£678 GBP
Retailer 8£696 GBP
Retailer 5£709 GBP
Retailer 7£775 GBP
Retailer 6£832 GBP
Retailer 12£908 GBP
Retailer 9£1,039 GBP
Retailer 15£1,285 GBP
Retailer 14£1,422 GBP
Retailer 3£1,727 GBP
Retailer 10£2,426 GBP
Retailer 2£3,038 GBP
Do Amore Diamonds£4,262 GBP

40 data points across 15 retailers

15 retailers£480 GBP to £4,262 GBP

A
Cheapest Retailer
-
£480 GBP
$643 USD
A
Retailer 2
-
£522 GBP
$699 USD
View
A
Retailer 3
-
£678 GBP
$909 USD
View
A
Retailer 4
-
£696 GBP
View
A
Retailer 5
-
£709 GBP
$950 USD
View
A
Retailer 6
-
£775 GBP
$1,038 USD
View
Final sale: no returns
A
Retailer 7
-
£832 GBP
$1,115 USD
View
A
Retailer 8
-
£908 GBP
$1,217 USD
View
B+
Retailer 9
-
£1,039 GBP
€1,326 EUR
View
B+
Retailer 10
-
£1,285 GBP
A$2,648 AUD
View
B+
Retailer 11
-
£1,422 GBP
$1,905 USD
View
B
Retailer 12
-
£1,727 GBP
$2,314 USD
View
B+
Retailer 13
-
£2,426 GBP
View
B
Retailer 14
-
£3,038 GBP
$4,070 USD
View
Most Expensive
B
Do Amore Diamonds
27-DBF8E8574 · Oct 31
£4,262 GBP
$5,710 USD
View
14 more retailers have this diamond
Prices start from £480 GBPSave up to £3,782 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
1.73ct Heart
£480 GBP