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Radiant|Lab Grown|IGI

1.51ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG702521569

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

Certificate IGI LG702521569

Diamond specifications and retailer prices

From $516 NZD
$291 USD
As of October 30, 2026
Save $2,873 NZD (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,389 NZD at Brilliant Earth · As of October 29, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG702521569 or 702521569. Listed at 20 retailers as of October 29, 2026, with prices from $516 to $3,389, a $2,873 spread on the same certified stone. Brilliant Earth lists it at $3,389. 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
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702521569
Dimensions7.65 × 5.60 × 3.75 mm
L/W Ratio1.37
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.65 mm5.60 mm1.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702521569
Side View
Table 67.0%Crown 47.1°Girdle: Slightly ThickPavilion 30.1°Culet: NoneDepth 67.0%

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 30
Current: $3,389 NZD|Low: $497 NZD|High: $3,566 NZD|Avg: $1,451 NZD|-5.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 20
October 31, 2026
Retailer 19$516 NZD
Retailer 10$578 NZD
Retailer 6$600 NZD
Retailer 7$641 NZD
Retailer 20$641 NZD
Retailer 16$923 NZD
Retailer 8$949 NZD
Retailer 5$1,052 NZD
Retailer 15$1,102 NZD
Retailer 9$1,102 NZD
Retailer 2$1,135 NZD
Retailer 14$1,491 NZD
Retailer 18$1,969 NZD
Retailer 4$2,062 NZD
Retailer 12$2,147 NZD
Retailer 3$2,466 NZD
Retailer 13$2,488 NZD
Retailer 17$2,573 NZD
Retailer 11$2,636 NZD
Brilliant Earth$3,389 NZD

44 data points across 20 retailers

20 retailers$516 NZD to $3,389 NZD

A
Cheapest Retailer
-
$516 NZD
$291 USD
A
Retailer 2
-
$578 NZD
$326 USD
View
Final sale: no returns
A
Retailer 3
-
$600 NZD
$338 USD
View
A
Retailer 4
-
$641 NZD
$361 USD
View
A
Retailer 5
-
$641 NZD
$361 USD
View
A
Retailer 6
-
$923 NZD
$520 USD
View
A
Retailer 7
-
$949 NZD
$535 USD
View
A
Retailer 8
-
$1,052 NZD
$593 USD
View
A
Retailer 9
-
$1,102 NZD
ZAR 10,031 ZAR
View
B+
Retailer 10
-
$1,102 NZD
$621 USD
View
B+
Retailer 11
-
$1,135 NZD
£504 GBP
View
B+
Retailer 12
-
$1,491 NZD
A$1,293 AUD
View
B
Retailer 13
-
$1,969 NZD
$1,110 USD
View
B
Retailer 14
-
$2,062 NZD
$1,162 USD
View
B
Retailer 15
-
$2,147 NZD
$1,210 USD
View
B
Retailer 16
-
$2,466 NZD
$1,390 USD
View
B
Retailer 17
-
$2,488 NZD
£1,104 GBP
View
B
Retailer 18
-
$2,573 NZD
£1,142 GBP
View
B
Retailer 19
-
$2,636 NZD
$1,485 USD
View
Most Expensive
B
Brilliant Earth
17978253A · Oct 29
$3,389 NZD
$1,910 USD
View
19 more retailers have this diamond
Prices start from $516 NZDSave up to $2,873 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
1.51ct Radiant
$516 NZD