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Radiant|Lab Grown|IGI

1.75ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG611397806

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

Certificate IGI LG611397806

Diamond specifications and retailer prices

From £139 GBP
$186 USD
As of October 27, 2026
Save £1,188 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,326 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.75ct lab-grown radiant diamond

This 1.75ct 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 LG611397806 or 611397806. Listed at 11 retailers as of October 27, 2026, with prices from £139 to £1,326, a £1,188 spread on the same certified stone. Do Amore Diamonds lists it at £1,326. 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

1.75
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG611397806
Dimensions8.41 × 5.88 × 4.02 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
8.41 mm5.88 mm1.75 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG611397806
Side View
Table 66.0%Crown 43.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
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: £1,326 GBP|Low: £111 GBP|High: £1,379 GBP|Avg: £595 GBP|-3.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
October 29, 2026
Retailer 12£139 GBP
Retailer 10£160 GBP
Retailer 16£161 GBP
Retailer 2£244 GBP
Retailer 14£303 GBP
Retailer 5£324 GBP
Retailer 6£408 GBP
Retailer 8£515 GBP
Retailer 11£583 GBP
Retailer 4£607 GBP
Retailer 13£609 GBP
Retailer 9£887 GBP
Retailer 7£894 GBP
Retailer 15£946 GBP
Retailer 3£1,081 GBP
Do Amore Diamonds£1,326 GBP

26 data points across 16 retailers

11 retailers£139 GBP to £1,326 GBP

A
Cheapest Retailer
-
£139 GBP
$186 USD
A
Retailer 2
-
£160 GBP
$215 USD
View
A
Retailer 3
-
£161 GBP
$216 USD
View
Final sale: no returns
A
Retailer 4
-
£244 GBP
View
B+
Retailer 5
-
£303 GBP
$406 USD
View
Retailer 6
-
£583 GBP
$782 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£609 GBP
$817 USD
View
B
Retailer 8
-
£887 GBP
View
Retailer 9
-
£946 GBP
$1,270 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
£1,081 GBP
$1,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-64C3D4476 · Oct 29
£1,326 GBP
$1,780 USD
View
10 more retailers have this diamond
Prices start from £139 GBPSave up to £1,188 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
1.75ct Radiant
£139 GBP