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 $640 USD
As of October 29, 2026
Save $4,708 USD (88%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,348 USD at Frank Darling · As of October 24, 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 24, 2026, with prices from $640 to $5,348, a $4,708 spread on the same certified stone. Frank Darling lists it at $5,348. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $5,348 USD|Low: $427 USD|High: $5,349 USD|Avg: $2,171 USD|-0.0%
Frank Darling
Retailer 2
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 15
October 27, 2026
Retailer 2$640 USD
Retailer 14$800 USD
Retailer 8$883 USD
Retailer 15$940 USD
Retailer 12$1,118 USD
Retailer 10$1,290 USD
Retailer 7$1,582 USD
Retailer 3$2,013 USD
Retailer 4$2,161 USD
Retailer 5$2,268 USD
Retailer 11$2,597 USD
Retailer 9$3,630 USD
Retailer 13$4,750 USD
Retailer 6$5,070 USD
Frank Darling$5,348 USD

18 data points across 15 retailers

5 retailers$640 USD to $5,348 USD

A
Cheapest Retailer
-
$640 USD
Final sale: no returns
B+
Retailer 2
-
$883 USD
View
A
Retailer 3
-
$1,290 USD
View
Price last confirmed 16 days ago
B
Retailer 4
-
$3,630 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Frank Darling
100756378406KD · Oct 24
$5,348 USD
View
4 more retailers have this diamond
Prices start from $640 USDSave up to $4,708 USD

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
$640 USD