Radiant|Lab Grown|IGI

1.51ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG631468449

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

Certificate IGI LG631468449

Diamond specifications and retailer prices

From $257 USD
As of November 4, 2026
Save $1,117 USD (81%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $1,596 USD at Rare Carat · As of August 31, 2026
View at Rare Carat

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 top-tier cut grade and certified by IGI LG631468449 or 631468449. Listed at 31 retailers as of November 4, 2026, with a 435% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631468449
Dimensions5.73 × 5.73 × 3.72 mm
L/W Ratio1.00
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
5.73 mm5.73 mm1.51 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631468449
Side View
Table 64.0%Crown 33.7°Girdle: MediumPavilion 32.6°Culet: NoneDepth 64.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $601 USD|Low: $257 USD|High: $1,374 USD|Avg: $792 USD|-2.1%
Retailer 1
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Retailer 20
November 5, 2026
Retailer 20$257 USD
Retailer 17$287 USD
Retailer 9$371 USD
Retailer 3$450 USD
Retailer 18$480 USD
Retailer 16$528 USD
Retailer 15$549 USD
Retailer 7$581 USD
Retailer 1$601 USD
Retailer 5$675 USD
Retailer 8$704 USD
Retailer 14$744 USD
Retailer 19$978 USD
Retailer 13$1,040 USD
Retailer 10$1,074 USD
Retailer 11$1,075 USD
Retailer 6$1,253 USD
Retailer 12$1,272 USD
Retailer 2$1,294 USD
Retailer 4$1,374 USD

41 data points across 20 retailers

31 retailers$257 USD to $1,374 USD

A
Cheapest Retailer
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$257 USD
Retailer 2
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$257 USD
View
Price last confirmed 28 days ago
Retailer 3
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$266 USD
View
Price last confirmed 36 days ago
A
Retailer 4
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$287 USD
View
Final sale: no returns
Retailer 5
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$308 USD
View
Price last confirmed 39 days ago
Retailer 6
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$318 USD
View
Price last confirmed 33 days ago
Retailer 7
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$325 USD
View
Price last confirmed 37 days ago
A
Retailer 8
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$371 USD
View
B+
Retailer 9
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$450 USD
View
A
Retailer 10
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$480 USD
View
A
Retailer 11
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$528 USD
View
A
Retailer 12
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$549 USD
View
A
Retailer 13
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$581 USD
View
Retailer 14
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$592 USD
View
Price last confirmed 21 days ago
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Retailer 15
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$601 USD
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A
Retailer 16
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$675 USD
View
B+
Retailer 17
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$704 USD
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B+
Retailer 18
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$744 USD
View
B+
Retailer 19
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$978 USD
View
B+
Retailer 20
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$1,023 USD
View
Retailer 21
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$1,023 USD
View
Price last confirmed 26 days ago
B+
Retailer 22
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$1,040 USD
View
Retailer 23
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$1,059 USD
View
Price last confirmed 36 days ago
B+
Retailer 24
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$1,074 USD
View
B+
Retailer 25
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$1,075 USD
View
B
Retailer 26
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$1,253 USD
View
B+
Retailer 27
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$1,272 USD
View
Retailer 28
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$1,294 USD
View
Price last confirmed 28 days ago
B
Retailer 29
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$1,372 USD
View
B
Retailer 30
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$1,374 USD
View
Most Expensive
Rare Carat
23658-2036-81_l_631468449 · Aug 31
$1,596 USD
View
Price last confirmed 65 days ago
30 more retailers have this diamond
Prices start from $257 USDSave up to $1,117 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
$257 USD