Radiant|Lab Grown|IGI

1.25ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG689562835

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

Certificate IGI LG689562835

Diamond specifications and retailer prices

From £243 GBP
$325 USD
As of October 30, 2026
Save £1,489 GBP (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,731 GBP at Yadav Diamonds · As of October 30, 2026
View at Yadav Diamonds

About this 1.25ct lab-grown radiant diamond

This 1.25ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG689562835 or 689562835. Listed at 19 retailers as of October 30, 2026, with prices from £243 to £1,731, a £1,489 spread on the same certified stone. Yadav Diamonds lists it at £1,731. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562835
Dimensions7.57 × 5.29 × 3.67 mm
L/W Ratio1.43
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
7.57 mm5.29 mm1.25 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562835
Side View
Table 68.0%Crown 45°Girdle: MediumPavilion 35.7°Culet: NoneDepth 69.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £476 GBP|Low: £171 GBP|High: £1,515 GBP|Avg: £651 GBP|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 2£243 GBP
Retailer 5£315 GBP
Retailer 6£382 GBP
Retailer 4£384 GBP
Retailer 1£476 GBP
Retailer 12£511 GBP
Retailer 7£557 GBP
Retailer 11£631 GBP
Retailer 9£656 GBP
Retailer 3£829 GBP
Retailer 13£901 GBP
Retailer 10£1,080 GBP
Retailer 8£1,470 GBP

41 data points across 13 retailers

19 retailers£243 GBP to £1,731 GBP

Retailer 1
-
£215 GBP
$288 USD
Price last confirmed 24 days ago
A
Retailer 2
-
£243 GBP
$325 USD
View
Final sale: no returns
Retailer 3
-
£249 GBP
$334 USD
View
Price last confirmed 18 days ago
Retailer 4
-
£266 GBP
$357 USD
View
Price last confirmed 29 days ago
Retailer 5
-
£266 GBP
$357 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
£315 GBP
$422 USD
View
A
Retailer 7
-
£382 GBP
€488 EUR
View
A
Retailer 8
-
£384 GBP
$515 USD
View
A
Retailer 9
-
£476 GBP
View
A
Retailer 10
-
£511 GBP
$685 USD
View
A
Retailer 11
-
£557 GBP
$746 USD
View
B+
Retailer 12
-
£631 GBP
$846 USD
View
B+
Retailer 13
-
£656 GBP
A$1,353 AUD
View
B+
Retailer 14
-
£829 GBP
SGD 1,501 SGD
View
Retailer 15
-
£857 GBP
$1,148 USD
View
Price last confirmed 31 days ago
B+
Retailer 16
-
£901 GBP
$1,208 USD
View
B+
Retailer 17
-
£1,080 GBP
View
B
Retailer 18
-
£1,470 GBP
$1,970 USD
View
Most Expensive
B
Yadav Diamonds
13004985 · Oct 30
£1,731 GBP
$2,320 USD
View
18 more retailers have this diamond
Prices start from £243 GBPSave up to £1,489 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
1.25ct Radiant
£243 GBP