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Radiant|Lab Grown|IGI

3.88ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG818690020

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

Certificate IGI LG818690020

Diamond specifications and retailer prices

From €573 EUR
$640 USD
As of October 31, 2026
Save €4,214 EUR (88%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €4,787 EUR at Frank Darling · As of October 26, 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 LG818690020 or 818690020. Listed at 5 retailers as of October 26, 2026, with prices from €573 to €4,787, a €4,214 spread on the same certified stone. Frank Darling lists it at €4,787. 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 angle46.2°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818690020
Dimensions10.66 × 7.87 × 5.34 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.66 mm7.87 mm3.88 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818690020
Side View
Table 67.0%Crown 46.2°Girdle: MediumPavilion 36.5°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 31
Current: €4,787 EUR|Low: €382 EUR|High: €4,787 EUR|Avg: €2,407 EUR|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2€573 EUR
Retailer 3€790 EUR
Retailer 5€2,125 EUR
Retailer 4€3,285 EUR
Retailer 6€4,252 EUR
Frank Darling€4,787 EUR

19 data points across 6 retailers

5 retailers€573 EUR to €4,787 EUR

A
Cheapest Retailer
-
€573 EUR
$640 USD
Final sale: no returns
B+
Retailer 2
-
€790 EUR
$883 USD
View
Retailer 3
-
€2,125 EUR
$2,374 USD
View
Price last confirmed 26 days ago
Retailer 4
-
€3,285 EUR
$3,670 USD
View
Price last confirmed 26 days ago
Most Expensive
B
Frank Darling
100753340690KD · Oct 26
€4,787 EUR
$5,348 USD
View
4 more retailers have this diamond
Prices start from €573 EURSave up to €4,214 EUR

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
€573 EUR