Radiant|Lab Grown|IGI

1.51ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG743578303

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

Certificate IGI LG743578303

Diamond specifications and retailer prices

From $205 USD
As of October 30, 2026
Save $1,965 USD (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $2,670 USD at Brilliant Earth · As of September 19, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG743578303 or 743578303. Listed at 27 retailers as of October 28, 2026, with a 959% 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
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743578303
Dimensions8.25 × 5.72 × 3.77 mm
L/W Ratio1.44
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
8.25 mm5.72 mm1.51 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743578303
Side View
Table 63.0%Crown 43.6°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
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 30
Current: $523 USD|Low: $228 USD|High: $1,883 USD|Avg: $828 USD|+4.5%
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
October 30, 2026
Retailer 5$228 USD
Retailer 13$254 USD
Retailer 11$448 USD
Retailer 7$481 USD
Retailer 1$523 USD
Retailer 4$585 USD
Retailer 8$654 USD
Retailer 12$819 USD
Retailer 14$900 USD
Retailer 6$1,097 USD
Retailer 9$1,124 USD
Retailer 10$1,345 USD
Retailer 2$1,570 USD
Retailer 3$1,883 USD

43 data points across 14 retailers

27 retailers$205 USD to $2,170 USD

A
Cheapest Retailer
-
$205 USD
A
Retailer 2
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$228 USD
View
Final sale: no returns
A
Retailer 3
-
$237 USD
View
A
Retailer 4
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$254 USD
View
A
Retailer 5
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$254 USD
View
B+
Retailer 6
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$339 USD
View
A
Retailer 7
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$448 USD
€427 EUR
View
A
Retailer 8
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$464 USD
View
A
Retailer 9
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$473 USD
View
A
Retailer 10
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$481 USD
ZAR 7,774 ZAR
View
A
Retailer 11
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$523 USD
£412 GBP
View
A
Retailer 12
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$585 USD
View
A
Retailer 13
-
$654 USD
A$1,006 AUD
View
B+
Retailer 14
-
$819 USD
View
B+
Retailer 15
-
$900 USD
View
B+
Retailer 16
-
$1,072 USD
View
B+
Retailer 17
-
$1,097 USD
£864 GBP
View
B+
Retailer 18
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$1,124 USD
£885 GBP
View
B
Retailer 19
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$1,209 USD
View
Retailer 20
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$1,345 USD
View
Price last confirmed 11 days ago
B
Retailer 21
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$1,570 USD
View
B
Retailer 22
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$1,882 USD
View
B
Retailer 23
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$1,883 USD
View
B
Retailer 24
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$1,960 USD
View
B
Retailer 25
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$2,170 USD
View
B
Retailer 26
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$2,170 USD
View
Most Expensive
Brilliant Earth
17906787A · Sep 19
$2,670 USD
View
Price last confirmed 40 days ago
26 more retailers have this diamond
Prices start from $205 USDSave up to $1,965 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
$205 USD