Radiant|Lab Grown|IGI

3.88ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG779649686

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

Certificate IGI LG779649686

Diamond specifications and retailer prices

From $640 USD
As of October 29, 2026
Save $243 USD (28%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,348 USD at Frank Darling · As of October 23, 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 LG779649686 or 779649686. Listed at 5 retailers as of October 29, 2026, with a 38% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle46°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779649686
Dimensions11.23 × 7.72 × 5.24 mm
L/W Ratio1.45
Culet sizePointed
Top View
11.23 mm7.72 mm3.88 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779649686
Side View
Table 67.0%Crown 46°Girdle: MediumPavilion 35.9°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: $640 USD|High: $9,250 USD|Avg: $2,795 USD|-5.4%
Frank Darling
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 28, 2026
Retailer 2$640 USD
Retailer 8$883 USD
Retailer 13$955 USD
Retailer 12$1,114 USD
Retailer 14$1,187 USD
Retailer 4$1,575 USD
Retailer 15$1,584 USD
Retailer 11$2,246 USD
Retailer 10$2,484 USD
Retailer 5$2,663 USD
Retailer 7$3,096 USD
Retailer 9$3,630 USD
Retailer 3$4,750 USD
Frank Darling$5,348 USD
Retailer 6$9,250 USD

6 data points across 15 retailers

5 retailers$640 USD to $883 USD

A
Cheapest Retailer
-
$640 USD
Final sale: no returns
B+
Retailer 2
-
$883 USD
View
Retailer 3
-
$3,096 USD
A$4,763 AUD
View
Price last confirmed 118 days ago
Retailer 4
-
$3,630 USD
View
Price last confirmed 11 days ago
Most Expensive
Frank Darling
100765896104KD · Oct 23
$5,348 USD
View
Price last confirmed 7 days ago
4 more retailers have this diamond
Prices start from $640 USDSave up to $243 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