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Radiant|Lab Grown|IGI

3.88ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG771667556

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

Certificate IGI LG771667556

Diamond specifications and retailer prices

From £478 GBP
$640 USD
As of October 29, 2026
Save £3,514 GBP (88%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,991 GBP at Frank Darling · As of October 30, 2026
View at Frank Darling

About this 3.88ct lab-grown radiant diamond

This 3.88ct 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 LG771667556 or 771667556. Listed at 5 retailers as of October 29, 2026, with prices from £478 to £3,991, a £3,514 spread on the same certified stone. Frank Darling lists it at £3,991. 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

3.88
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.8°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771667556
Dimensions7.72 × 7.72 × 10.95 mm
L/W Ratio1.00
Culet sizePointed
Top View
7.72 mm7.72 mm3.88 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771667556
Side View
Table 66.0%Crown 47.8°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £3,991 GBP|Low: £319 GBP|High: £3,992 GBP|Avg: £1,627 GBP|-0.0%
Frank Darling
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
October 30, 2026
Retailer 2£478 GBP
Retailer 14£597 GBP
Retailer 8£659 GBP
Retailer 15£702 GBP
Retailer 12£834 GBP
Retailer 10£963 GBP
Retailer 7£1,181 GBP
Retailer 3£1,502 GBP
Retailer 4£1,613 GBP
Retailer 5£1,692 GBP
Retailer 11£1,938 GBP
Retailer 9£2,709 GBP
Retailer 13£3,545 GBP
Retailer 6£3,784 GBP
Frank Darling£3,991 GBP

19 data points across 15 retailers

5 retailers£478 GBP to £3,991 GBP

A
Cheapest Retailer
-
£478 GBP
$640 USD
Final sale: no returns
B+
Retailer 2
-
£659 GBP
$883 USD
View
Retailer 3
-
£963 GBP
$1,290 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£2,709 GBP
$3,630 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Frank Darling
100756378406KD · Oct 30
£3,991 GBP
$5,348 USD
View
4 more retailers have this diamond
Prices start from £478 GBPSave up to £3,514 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
3.88ct Radiant
£478 GBP