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Radiant|Lab Grown|IGI

1.51ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG770682303

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

Certificate IGI LG770682303

Diamond specifications and retailer prices

From $390 NZD
$220 USD
As of October 30, 2026
Save $2,999 NZD (88%) vs most expensive(unlock to see where)
27 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 LG770682303 or 770682303. Listed at 27 retailers as of October 29, 2026, with prices from $390 to $3,389, a $2,999 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle29.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770682303
Dimensions8.74 × 5.49 × 3.52 mm
L/W Ratio1.59
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.74 mm5.49 mm1.51 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770682303
Side View
Table 63.0%Crown 42.1°Girdle: Slightly ThickPavilion 29.8°Culet: NoneDepth 64.1%

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: $366 NZD|High: $3,566 NZD|Avg: $1,214 NZD|-5.0%
Brilliant Earth
Retailer 2
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Retailer 25
October 31, 2026
Retailer 10$390 NZD
Retailer 8$435 NZD
Retailer 7$452 NZD
Retailer 3$483 NZD
Retailer 24$483 NZD
Retailer 16$545 NZD
Retailer 17$653 NZD
Retailer 2$801 NZD
Retailer 22$830 NZD
Retailer 19$898 NZD
Retailer 6$903 NZD
Retailer 5$933 NZD
Retailer 15$990 NZD
Retailer 23$1,128 NZD
Retailer 11$1,185 NZD
Retailer 14$1,462 NZD
Retailer 25$1,553 NZD
Retailer 18$1,568 NZD
Retailer 21$1,611 NZD
Retailer 9$1,646 NZD
Retailer 12$1,828 NZD
Retailer 20$1,945 NZD
Retailer 13$1,966 NZD
Retailer 4$2,228 NZD
Brilliant Earth$3,389 NZD

28 data points across 25 retailers

27 retailers$390 NZD to $3,389 NZD

A
Cheapest Retailer
-
$390 NZD
$220 USD
A
Retailer 2
-
$435 NZD
$245 USD
View
Final sale: no returns
A
Retailer 3
-
$452 NZD
$255 USD
View
A
Retailer 4
-
$483 NZD
$272 USD
View
A
Retailer 5
-
$483 NZD
$272 USD
View
A
Retailer 6
-
$545 NZD
HK$2,400 HKD
View
B+
Retailer 7
-
$653 NZD
$368 USD
View
Retailer 8
-
$801 NZD
€430 EUR
View
A
Retailer 9
-
$830 NZD
ZAR 7,554 ZAR
View
A
Retailer 10
-
$898 NZD
£398 GBP
View
A
Retailer 11
-
$903 NZD
$509 USD
View
A
Retailer 12
-
$933 NZD
$526 USD
View
A
Retailer 13
-
$990 NZD
$558 USD
View
B+
Retailer 14
-
$1,128 NZD
A$978 AUD
View
B+
Retailer 15
-
$1,185 NZD
$668 USD
View
B+
Retailer 16
-
$1,254 NZD
$707 USD
View
B+
Retailer 17
-
$1,462 NZD
$824 USD
View
B+
Retailer 18
-
$1,553 NZD
$875 USD
View
B+
Retailer 19
-
$1,568 NZD
SGD 1,194 SGD
View
B+
Retailer 20
-
$1,611 NZD
A$1,397 AUD
View
B+
Retailer 21
-
$1,646 NZD
$928 USD
View
Retailer 22
-
$1,828 NZD
$1,030 USD
View
Price last confirmed 12 days ago
B
Retailer 23
-
$1,875 NZD
$1,057 USD
View
B
Retailer 24
-
$1,945 NZD
£863 GBP
View
B
Retailer 25
-
$1,966 NZD
$1,108 USD
View
B
Retailer 26
-
$2,228 NZD
$1,256 USD
View
Most Expensive
B
Brilliant Earth
18166927A · Oct 29
$3,389 NZD
$1,910 USD
View
26 more retailers have this diamond
Prices start from $390 NZDSave up to $2,999 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
$390 NZD