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Radiant|Lab Grown|IGI

1.71ct D IF Radiant Lab Grown Diamond

GD • D/IF • IGI LG712535601

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG712535601

Diamond specifications and retailer prices

From £464 GBP
$622 USD
As of October 30, 2026
Save £2,140 GBP (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,605 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.71ct lab-grown radiant diamond

This 1.71ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG712535601 or 712535601. Listed at 23 retailers as of October 30, 2026, with prices from £464 to £2,605, a £2,140 spread on the same certified stone. Brilliant Earth lists it at £2,605. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.1°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712535601
Dimensions8.35 × 6.19 × 3.94 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.35 mm6.19 mm1.71 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG712535601
Side View
Table 58.0%Crown 38.1°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 63.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £2,605 GBP|Low: £446 GBP|High: £3,724 GBP|Avg: £1,205 GBP|-30.1%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
October 31, 2026
Retailer 17£464 GBP
Retailer 6£519 GBP
Retailer 8£519 GBP
Retailer 4£575 GBP
Retailer 7£575 GBP
Retailer 13£672 GBP
Retailer 16£797 GBP
Retailer 2£863 GBP
Retailer 10£901 GBP
Retailer 12£989 GBP
Retailer 15£1,292 GBP
Retailer 5£1,513 GBP
Retailer 9£1,672 GBP
Retailer 3£1,794 GBP
Retailer 11£2,280 GBP
Retailer 14£2,426 GBP
Brilliant Earth£2,605 GBP

44 data points across 17 retailers

23 retailers£464 GBP to £2,605 GBP

A
Cheapest Retailer
-
£464 GBP
$622 USD
A
Retailer 2
-
£519 GBP
$696 USD
View
Final sale: no returns
A
Retailer 3
-
£519 GBP
$696 USD
View
Retailer 4
-
£575 GBP
$771 USD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
£575 GBP
$771 USD
View
B+
Retailer 6
-
£672 GBP
$900 USD
View
B+
Retailer 7
-
£797 GBP
$1,068 USD
View
B+
Retailer 8
-
£816 GBP
$1,094 USD
View
B+
Retailer 9
-
£863 GBP
€1,101 EUR
View
B+
Retailer 10
-
£901 GBP
View
B+
Retailer 11
-
£989 GBP
ZAR 21,403 ZAR
View
B
Retailer 12
-
£1,292 GBP
$1,731 USD
View
Retailer 13
-
£1,375 GBP
$1,842 USD
View
Price last confirmed 32 days ago
B
Retailer 14
-
£1,513 GBP
$2,027 USD
View
B
Retailer 15
-
£1,672 GBP
View
B
Retailer 16
-
£1,794 GBP
$2,404 USD
View
B
Retailer 17
-
£1,836 GBP
$2,460 USD
View
B
Retailer 18
-
£1,858 GBP
$2,490 USD
View
B
Retailer 19
-
£1,895 GBP
$2,539 USD
View
B
Retailer 20
-
£1,973 GBP
$2,644 USD
View
B
Retailer 21
-
£2,280 GBP
View
Retailer 22
-
£2,426 GBP
$3,250 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
14752848A · Oct 30
£2,605 GBP
$3,490 USD
View
22 more retailers have this diamond
Prices start from £464 GBPSave up to £2,140 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 Radiant
£464 GBP