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Radiant|Lab Grown|IGI

1.71ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG739586743

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

Certificate IGI LG739586743

Diamond specifications and retailer prices

From £228 GBP
$303 USD
As of October 30, 2026
Save £1,792 GBP (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,020 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG739586743 or 739586743. Listed at 23 retailers as of October 29, 2026, with prices from £228 to £2,020, a £1,792 spread on the same certified stone. Do Amore Diamonds lists it at £2,020. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle57.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739586743
Dimensions8.49 × 5.87 × 3.92 mm
L/W Ratio1.45
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
8.49 mm5.87 mm1.71 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739586743
Side View
Table 67.0%Crown 57.7°Girdle: MediumPavilion 37.8°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,020 GBP|Low: £219 GBP|High: £2,020 GBP|Avg: £840 GBP
Do Amore Diamonds
Retailer 2
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October 30, 2026
Retailer 19£228 GBP
Retailer 7£255 GBP
Retailer 20£282 GBP
Retailer 10£394 GBP
Retailer 16£398 GBP
Retailer 6£462 GBP
Retailer 4£483 GBP
Retailer 15£535 GBP
Retailer 2£558 GBP
Retailer 14£726 GBP
Retailer 18£867 GBP
Retailer 5£1,002 GBP
Retailer 3£1,085 GBP
Retailer 12£1,122 GBP
Retailer 8£1,140 GBP
Retailer 9£1,149 GBP
Retailer 11£1,213 GBP
Retailer 13£1,255 GBP
Retailer 17£1,941 GBP
Do Amore Diamonds£2,020 GBP

45 data points across 20 retailers

23 retailers£228 GBP to £2,020 GBP

A
Cheapest Retailer
-
£228 GBP
$303 USD
A
Retailer 2
-
£255 GBP
$339 USD
View
Final sale: no returns
A
Retailer 3
-
£264 GBP
$352 USD
View
A
Retailer 4
-
£282 GBP
$376 USD
View
A
Retailer 5
-
£282 GBP
$376 USD
View
A
Retailer 6
-
£394 GBP
HK$4,100 HKD
View
A
Retailer 7
-
£398 GBP
$530 USD
View
A
Retailer 8
-
£462 GBP
$615 USD
View
A
Retailer 9
-
£483 GBP
$643 USD
View
A
Retailer 10
-
£535 GBP
ZAR 11,520 ZAR
View
A
Retailer 11
-
£558 GBP
View
A
Retailer 12
-
£726 GBP
A$1,488 AUD
View
A
Retailer 13
-
£749 GBP
$998 USD
View
B+
Retailer 14
-
£867 GBP
$1,155 USD
View
B+
Retailer 15
-
£1,002 GBP
$1,334 USD
View
B+
Retailer 16
-
£1,085 GBP
$1,445 USD
View
B+
Retailer 17
-
£1,122 GBP
$1,494 USD
View
B+
Retailer 18
-
£1,140 GBP
$1,519 USD
View
B+
Retailer 19
-
£1,149 GBP
SGD 2,067 SGD
View
B+
Retailer 20
-
£1,213 GBP
View
B+
Retailer 21
-
£1,255 GBP
View
Retailer 22
-
£1,941 GBP
$2,585 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
27-8F0FF4B01 · Oct 29
£2,020 GBP
$2,690 USD
View
22 more retailers have this diamond
Prices start from £228 GBPSave up to £1,792 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
£228 GBP