Radiant|Lab Grown|IGI

1.51ct D VVS1 Radiant Lab Grown Diamond

VG • D/VVS1 • IGI LG657463184

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

Certificate IGI LG657463184

Diamond specifications and retailer prices

From $291 USD
As of November 4, 2026
Save $2,289 USD (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,950 USD at Brilliant Earth · As of October 25, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG657463184 or 657463184. Listed at 25 retailers as of November 4, 2026, with a 787% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657463184
Dimensions8.06 × 5.78 × 3.72 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.06 mm5.78 mm1.51 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657463184
Side View
Table 59.0%Crown 36.4°Girdle: Slightly ThickPavilion 34.8°Culet: NoneDepth 64.4%

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: Nov 4
Current: $2,950 USD|Low: $290 USD|High: $2,980 USD|Avg: $966 USD|-1.0%
Brilliant Earth
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
November 5, 2026
Retailer 13$291 USD
Retailer 14$430 USD
Retailer 8$480 USD
Retailer 6$585 USD
Retailer 11$613 USD
Retailer 2$622 USD
Retailer 9$833 USD
Retailer 10$921 USD
Retailer 4$1,143 USD
Retailer 3$1,267 USD
Retailer 12$1,294 USD
Retailer 5$1,343 USD
Retailer 7$1,421 USD
Brilliant Earth$2,950 USD

43 data points across 14 retailers

25 retailers$291 USD to $2,580 USD

Retailer 1
-
$260 USD
Price last confirmed 17 days ago
A
Retailer 2
-
$291 USD
View
Final sale: no returns
Retailer 3
-
$301 USD
View
Price last confirmed 22 days ago
Retailer 4
-
$322 USD
View
Price last confirmed 20 days ago
Retailer 5
-
$322 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$430 USD
View
A
Retailer 7
-
$460 USD
View
A
Retailer 8
-
$480 USD
View
A
Retailer 9
-
$527 USD
View
A
Retailer 10
-
$585 USD
View
A
Retailer 11
-
$613 USD
View
A
Retailer 12
-
$622 USD
View
B+
Retailer 13
-
$833 USD
View
B+
Retailer 14
-
$921 USD
View
Retailer 15
-
$1,143 USD
View
Price last confirmed 16 days ago
B
Retailer 16
-
$1,267 USD
View
B
Retailer 17
-
$1,294 USD
View
B
Retailer 18
-
$1,309 USD
View
B
Retailer 19
-
$1,343 USD
View
B
Retailer 20
-
$1,372 USD
View
B
Retailer 21
-
$1,382 USD
View
B
Retailer 22
-
$1,421 USD
View
B
Retailer 23
-
$2,310 USD
View
B
Retailer 24
-
$2,580 USD
View
Most Expensive
Brilliant Earth
11942336A · Oct 25
$2,950 USD
View
Price last confirmed 10 days ago
24 more retailers have this diamond
Prices start from $291 USDSave up to $2,289 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
1.51ct Radiant
$291 USD