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Radiant|Lab Grown|IGI

1.25ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG689562971

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

Certificate IGI LG689562971

Diamond specifications and retailer prices

From £123 GBP
$164 USD
As of October 27, 2026
Save £1,066 GBP (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,761 GBP at Do Amore Diamonds · As of October 28, 2026
View at Do Amore 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG689562971 or 689562971. Listed at 17 retailers as of October 27, 2026, with a 863% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle54.2°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562971
Dimensions7.67 × 5.21 × 3.60 mm
L/W Ratio1.47
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
7.67 mm5.21 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562971
Side View
Table 64.0%Crown 54.2°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 69.1%

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: £1,189 GBP|Low: £123 GBP|High: £1,340 GBP|Avg: £415 GBP|-8.7%
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
Retailer 15
Retailer 16
October 29, 2026
Retailer 5£123 GBP
Retailer 6£138 GBP
Retailer 15£144 GBP
Retailer 12£154 GBP
Retailer 14£154 GBP
Retailer 8£208 GBP
Retailer 16£281 GBP
Retailer 10£291 GBP
Retailer 9£304 GBP
Retailer 3£399 GBP
Retailer 11£413 GBP
Retailer 7£430 GBP
Retailer 13£545 GBP
Retailer 4£675 GBP
Retailer 2£796 GBP
Do Amore Diamonds£1,189 GBP

34 data points across 16 retailers

17 retailers£123 GBP to £1,189 GBP

A
Cheapest Retailer
-
£123 GBP
$164 USD
A
Retailer 2
-
£138 GBP
$183 USD
View
Final sale: no returns
A
Retailer 3
-
£144 GBP
$191 USD
View
A
Retailer 4
-
£154 GBP
$204 USD
View
A
Retailer 5
-
£154 GBP
$204 USD
View
B+
Retailer 6
-
£208 GBP
$277 USD
View
A
Retailer 7
-
£281 GBP
$374 USD
View
A
Retailer 8
-
£291 GBP
ZAR 6,244 ZAR
View
A
Retailer 9
-
£304 GBP
View
A
Retailer 10
-
£399 GBP
$530 USD
View
B+
Retailer 11
-
£413 GBP
A$845 AUD
View
B+
Retailer 12
-
£430 GBP
$572 USD
View
B+
Retailer 13
-
£545 GBP
$724 USD
View
B+
Retailer 14
-
£675 GBP
$897 USD
View
B
Retailer 15
-
£796 GBP
View
B
Retailer 16
-
£1,189 GBP
$1,580 USD
View
Most Expensive
B
Do Amore Diamonds
23-689562971 · Oct 28
£1,761 GBP
$2,340 USD
View
Price under review
16 more retailers have this diamond
Prices start from £123 GBPSave up to £1,066 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
£123 GBP