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Radiant|Lab Grown|IGI

3.89ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG709534991

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

Certificate IGI LG709534991

Diamond specifications and retailer prices

From £1,055 GBP
$1,413 USD
As of October 29, 2026
Save £1,919 GBP (65%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,974 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.89ct lab-grown radiant diamond

This 3.89ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG709534991 or 709534991. Listed at 7 retailers as of October 29, 2026, with prices from £1,055 to £2,974, a £1,919 spread on the same certified stone. Taylor and Hart lists it at £2,974. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.89
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG709534991
Dimensions11.39 × 7.87 × 5.08 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.39 mm7.87 mm3.89 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG709534991
Side View
Table 65.0%Crown 44.8°Girdle: MediumPavilion 33.5°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,280 GBP|Low: £954 GBP|High: £3,268 GBP|Avg: £1,946 GBP|+9.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 28, 2026
Retailer 5£1,055 GBP
Retailer 4£1,215 GBP
Retailer 6£1,234 GBP
Retailer 1£1,280 GBP
Retailer 2£2,847 GBP
Retailer 3£2,881 GBP
Taylor and Hart£2,974 GBP

28 data points across 7 retailers

7 retailers£1,055 GBP to £2,974 GBP

A
Cheapest Retailer
-
£1,055 GBP
$1,413 USD
A
Retailer 2
-
£1,215 GBP
$1,628 USD
View
A
Retailer 3
-
£1,234 GBP
$1,653 USD
View
A
Retailer 4
-
£1,280 GBP
View
Retailer 5
-
£2,847 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
£2,881 GBP
$3,860 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Taylor and Hart
T6719PX · Oct 30
£2,974 GBP
$3,985 USD
View
6 more retailers have this diamond
Prices start from £1,055 GBPSave up to £1,919 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
3.89ct Radiant
£1,055 GBP