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Radiant|Lab Grown|IGI

1.72ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG566307425

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

Certificate IGI LG566307425

Diamond specifications and retailer prices

From £136 GBP
$183 USD
As of October 27, 2026
Save £1,175 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,312 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.72ct lab-grown radiant diamond

This 1.72ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG566307425 or 566307425. Listed at 12 retailers as of October 27, 2026, with prices from £136 to £1,312, a £1,175 spread on the same certified stone. Do Amore Diamonds lists it at £1,312. 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

1.72
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566307425
Dimensions8.38 × 5.85 × 3.99 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.38 mm5.85 mm1.72 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566307425
Side View
Table 66.5%Crown 45.8°Girdle: MediumPavilion 35.4°Culet: NoneDepth 68.2%

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 27
Current: £1,312 GBP|Low: £109 GBP|High: £1,356 GBP|Avg: £571 GBP|-3.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 29, 2026
Retailer 13£136 GBP
Retailer 10£158 GBP
Retailer 3£159 GBP
Retailer 2£240 GBP
Retailer 12£297 GBP
Retailer 6£318 GBP
Retailer 7£405 GBP
Retailer 8£506 GBP
Retailer 11£575 GBP
Retailer 5£587 GBP
Retailer 14£600 GBP
Retailer 16£781 GBP
Retailer 9£874 GBP
Retailer 15£931 GBP
Retailer 4£1,058 GBP
Do Amore Diamonds£1,312 GBP

26 data points across 16 retailers

12 retailers£136 GBP to £1,312 GBP

A
Cheapest Retailer
-
£136 GBP
$183 USD
A
Retailer 2
-
£158 GBP
$212 USD
View
A
Retailer 3
-
£159 GBP
$213 USD
View
Final sale: no returns
A
Retailer 4
-
£240 GBP
View
B+
Retailer 5
-
£297 GBP
$399 USD
View
Retailer 6
-
£575 GBP
$771 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£600 GBP
$805 USD
View
B
Retailer 8
-
£781 GBP
$1,048 USD
View
B
Retailer 9
-
£874 GBP
View
Retailer 10
-
£931 GBP
$1,250 USD
View
Price last confirmed 7 days ago
B
Retailer 11
-
£1,058 GBP
$1,420 USD
View
Most Expensive
B
Do Amore Diamonds
27-802109B26 · Oct 29
£1,312 GBP
$1,760 USD
View
11 more retailers have this diamond
Prices start from £136 GBPSave up to £1,175 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
1.72ct Radiant
£136 GBP