Radiant|Lab Grown|IGI

4.78ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG810612597

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

Certificate IGI LG810612597

Diamond specifications and retailer prices

From $888 USD
As of October 30, 2026
Save $3,847 USD (81%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $4,735 USD at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 4.78ct lab-grown radiant diamond

This 4.78ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG810612597 or 810612597. Listed at 4 retailers as of October 29, 2026, with prices from $888 to $4,735, a $3,847 spread on the same certified stone. Frank Darling lists it at $4,735. 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

4.78
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810612597
Dimensions11.91 × 8.32 × 5.57 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.91 mm8.32 mm4.78 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810612597
Side View
Table 65.0%Crown 47.1°Girdle: MediumPavilion 35.1°Culet: NoneDepth 66.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,735 USD|Low: $645 USD|High: $4,735 USD|Avg: $1,924 USD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 8$645 USD
Retailer 2$888 USD
Retailer 5$1,093 USD
Retailer 12$1,254 USD
Retailer 3$1,499 USD
Retailer 9$1,680 USD
Retailer 11$1,737 USD
Retailer 10$2,085 USD
Retailer 4$2,545 USD
Retailer 7$3,135 USD
Retailer 6$4,010 USD
Frank Darling$4,735 USD

18 data points across 12 retailers

4 retailers$888 USD to $4,735 USD

B+
Cheapest Retailer
-
$888 USD
Retailer 2
-
$3,135 USD
View
Price last confirmed 25 days ago
Retailer 3
-
$4,010 USD
View
Price last confirmed 22 days ago
Most Expensive
B
Frank Darling
100760064410KD · Oct 29
$4,735 USD
View
3 more retailers have this diamond
Prices start from $888 USDSave up to $3,847 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.

B+
4.78ct Radiant
$888 USD