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Heart|Lab Grown|IGI

1.71ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG641479416

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG641479416

Diamond specifications and retailer prices

From £200 GBP
$268 USD
As of October 30, 2026
Save £1,076 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,276 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.71ct lab-grown heart diamond

This 1.71ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG641479416 or 641479416. Listed at 21 retailers as of October 30, 2026, with prices from £200 to £1,276, a £1,076 spread on the same certified stone. Brilliant Earth lists it at £1,276. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641479416
Dimensions8.31 × 7.15 × 4.90 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.31 mm7.15 mm1.71 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG641479416
Side View
Table 57.0%Crown 39°Girdle: Slightly ThickPavilion 39.7°Culet: NoneDepth 59.0%

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: £1,276 GBP|Low: £192 GBP|High: £1,493 GBP|Avg: £599 GBP|-12.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
Retailer 19
October 31, 2026
Retailer 16£200 GBP
Retailer 9£224 GBP
Retailer 5£232 GBP
Retailer 7£248 GBP
Retailer 18£248 GBP
Retailer 13£366 GBP
Retailer 3£411 GBP
Retailer 12£426 GBP
Retailer 6£449 GBP
Retailer 2£475 GBP
Retailer 4£489 GBP
Retailer 15£645 GBP
Retailer 19£797 GBP
Retailer 11£799 GBP
Retailer 8£835 GBP
Retailer 17£910 GBP
Retailer 14£995 GBP
Retailer 10£1,052 GBP
Brilliant Earth£1,276 GBP

43 data points across 19 retailers

21 retailers£200 GBP to £1,276 GBP

A
Cheapest Retailer
-
£200 GBP
$268 USD
A
Retailer 2
-
£224 GBP
$300 USD
View
Final sale: no returns
A
Retailer 3
-
£232 GBP
$311 USD
View
A
Retailer 4
-
£248 GBP
$332 USD
View
A
Retailer 5
-
£248 GBP
$332 USD
View
A
Retailer 6
-
£366 GBP
$490 USD
View
A
Retailer 7
-
£411 GBP
$551 USD
View
A
Retailer 8
-
£426 GBP
ZAR 9,220 ZAR
View
A
Retailer 9
-
£449 GBP
$602 USD
View
B+
Retailer 10
-
£475 GBP
View
B+
Retailer 11
-
£489 GBP
$655 USD
View
Retailer 12
-
£586 GBP
$785 USD
View
Price last confirmed 21 days ago
B+
Retailer 13
-
£645 GBP
$864 USD
View
B
Retailer 14
-
£797 GBP
$1,068 USD
View
B
Retailer 15
-
£799 GBP
SGD 1,446 SGD
View
B
Retailer 16
-
£835 GBP
$1,119 USD
View
B
Retailer 17
-
£910 GBP
$1,219 USD
View
B
Retailer 18
-
£954 GBP
$1,278 USD
View
B
Retailer 19
-
£995 GBP
View
B
Retailer 20
-
£1,052 GBP
$1,410 USD
View
Most Expensive
B
Brilliant Earth
16911002A · Oct 30
£1,276 GBP
$1,710 USD
View
20 more retailers have this diamond
Prices start from £200 GBPSave up to £1,076 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
1.71ct Heart
£200 GBP