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 $1,139 NZD
$642 USD
As of October 31, 2026
Save $7,263 NZD (86%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,402 NZD at Frank Darling · As of November 1, 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 5 retailers as of October 31, 2026, with prices from $1,139 to $8,402, a $7,263 spread on the same certified stone. Frank Darling lists it at $8,402. 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
Colour
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

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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 31
Current: $8,402 NZD|Low: $1,139 NZD|High: $8,402 NZD|Avg: $3,422 NZD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 2$1,139 NZD
Retailer 10$1,144 NZD
Retailer 6$1,576 NZD
Retailer 7$1,939 NZD
Retailer 3$2,225 NZD
Retailer 4$2,660 NZD
Retailer 11$2,981 NZD
Retailer 13$3,083 NZD
Retailer 12$3,699 NZD
Retailer 5$4,516 NZD
Retailer 9$5,562 NZD
Retailer 8$7,115 NZD
Frank Darling$8,402 NZD

18 data points across 13 retailers

5 retailers$1,139 NZD to $8,402 NZD

A
Cheapest Retailer
-
$1,139 NZD
$642 USD
Final sale: no returns
B+
Retailer 2
-
$1,576 NZD
$888 USD
View
Retailer 3
-
$5,562 NZD
$3,135 USD
View
Price last confirmed 27 days ago
Retailer 4
-
$7,115 NZD
$4,010 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Frank Darling
100760064410KD · Nov 1
$8,402 NZD
$4,735 USD
View
4 more retailers have this diamond
Prices start from $1,139 NZDSave up to $7,263 NZD

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
4.78ct Radiant
$1,139 NZD