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Heart|Lab Grown|IGI

1.61ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG677533550

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG677533550

Diamond specifications and retailer prices

From £385 GBP
$516 USD
As of October 30, 2026
Save £3,108 GBP (89%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £3,493 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.61ct lab-grown heart diamond

This 1.61ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG677533550 or 677533550. Listed at 26 retailers as of October 30, 2026, with prices from £385 to £3,493, a £3,108 spread on the same certified stone. Brilliant Earth lists it at £3,493. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677533550
Dimensions7.51 × 8.01 × 4.61 mm
L/W Ratio1.07
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
7.51 mm8.01 mm1.61 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677533550
Side View
Table 54.0%Crown 36.7°Girdle: MED-STKPavilion 39°Culet: NoneDepth 57.6%

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: Oct 30
Current: £3,493 GBP|Low: £370 GBP|High: £3,493 GBP|Avg: £1,162 GBP
Brilliant Earth
Retailer 2
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Retailer 17
October 31, 2026
Retailer 5£385 GBP
Retailer 9£431 GBP
Retailer 7£478 GBP
Retailer 11£507 GBP
Retailer 15£582 GBP
Retailer 3£642 GBP
Retailer 13£701 GBP
Retailer 17£707 GBP
Retailer 12£741 GBP
Retailer 14£821 GBP
Retailer 2£1,050 GBP
Retailer 10£1,113 GBP
Retailer 8£1,257 GBP
Retailer 6£1,655 GBP
Retailer 16£1,998 GBP
Retailer 4£2,732 GBP
Brilliant Earth£3,493 GBP

35 data points across 17 retailers

26 retailers£385 GBP to £3,493 GBP

A
Cheapest Retailer
-
£385 GBP
$516 USD
A
Retailer 2
-
£431 GBP
$578 USD
View
Final sale: no returns
A
Retailer 3
-
£431 GBP
$578 USD
View
A
Retailer 4
-
£478 GBP
$640 USD
View
Retailer 5
-
£478 GBP
$640 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
£507 GBP
View
A
Retailer 7
-
£582 GBP
$780 USD
View
A
Retailer 8
-
£642 GBP
$860 USD
View
A
Retailer 9
-
£646 GBP
$865 USD
View
A
Retailer 10
-
£701 GBP
€895 EUR
View
A
Retailer 11
-
£707 GBP
A$1,458 AUD
View
A
Retailer 12
-
£741 GBP
View
A
Retailer 13
-
£821 GBP
ZAR 17,781 ZAR
View
B+
Retailer 14
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£899 GBP
$1,205 USD
View
B+
Retailer 15
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£1,050 GBP
$1,407 USD
View
B+
Retailer 16
-
£1,113 GBP
A$2,294 AUD
View
B+
Retailer 17
-
£1,118 GBP
$1,498 USD
View
B+
Retailer 18
-
£1,257 GBP
$1,684 USD
View
B+
Retailer 19
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£1,555 GBP
$2,083 USD
View
B+
Retailer 20
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£1,570 GBP
$2,103 USD
View
B
Retailer 21
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£1,645 GBP
$2,204 USD
View
B
Retailer 22
-
£1,655 GBP
$2,217 USD
View
B
Retailer 23
-
£1,756 GBP
$2,353 USD
View
B+
Retailer 24
-
£1,998 GBP
View
Retailer 25
-
£2,732 GBP
A$5,632 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
13232930A · Oct 30
£3,493 GBP
$4,680 USD
View
25 more retailers have this diamond
Prices start from £385 GBPSave up to £3,108 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
1.61ct Heart
£385 GBP