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Radiant|Lab Grown|IGI

4.51ct D VVS2 Radiant Lab Grown Diamond

ID • D/VVS2 • IGI LG786650164

Certificate IGI LG786650164

Diamond specifications and retailer prices

From $1,777 USD
Save $4,538 USD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,315 USD at Taylor and Hart
View at Taylor and Hart

About this 4.51ct lab-grown radiant diamond

This 4.51ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG786650164 or 786650164. Listed at 13 retailers, with prices from $1,777 to $6,315 at Taylor and Hart, a $4,538 spread on the same certified stone. 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

4.51
Carat
D
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786650164
Dimensions11.49 × 8.25 × 5.43 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.49 mm8.25 mm4.51 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786650164
Side View
Table 69.0%Crown 42.1°Girdle: STK-THKPavilion 34.5°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $2,897 USD|Low: $1,128 USD|High: $6,315 USD|Avg: $3,114 USD|+11.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Taylor and Hart
October 1, 2026
Retailer 6$1,128 USD
Retailer 4$1,190 USD
Retailer 12$1,777 USD
Retailer 13$2,010 USD
Retailer 11$2,178 USD
Retailer 7$2,670 USD
Retailer 1$2,897 USD
Retailer 2$2,979 USD
Retailer 5$3,341 USD
Retailer 9$3,848 USD
Retailer 10$3,949 USD
Retailer 14$4,343 USD
Retailer 8$5,005 USD
Retailer 3$5,361 USD
Taylor and Hart$6,315 USD

30 data points across 15 retailers

13 retailers$1,777 USD to $6,315 USD

A
Cheapest Retailer
-
$1,777 USD
B+
Retailer 2
-
$2,010 USD
View
B+
Retailer 3
-
$2,178 USD
View
B+
Retailer 4
-
$2,676 USD
£2,107 GBP
View
B+
Retailer 5
-
$2,897 USD
View
B+
Retailer 6
-
$2,979 USD
View
B+
Retailer 7
-
$3,341 USD
View
B+
Retailer 8
-
$3,848 USD
ZAR 62,157 ZAR
View
B
Retailer 9
-
$3,949 USD
A$6,075 AUD
View
B
Retailer 10
-
$4,343 USD
£3,420 GBP
View
B
Retailer 11
-
$5,005 USD
£3,941 GBP
View
B
Retailer 12
-
$5,361 USD
View
Most Expensive
B
Taylor and Hart
NC30QNT · Oct 1
$6,315 USD
View
12 more retailers have this diamond
Prices start from $1,777 USDSave up to $4,538 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.

A
4.51ct Radiant
$1,777 USD