Oval|Lab Grown|IGI

1.51ct G VS1 Oval Lab Grown Diamond

ID • G/VS1 • IGI LG830619027

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG830619027

Diamond specifications and retailer prices

From $559 NZD
£248 GBP
As of October 26, 2026
Save $1,197 NZD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,951 NZD at Helzberg Diamonds · As of October 25, 2026
View at Helzberg Diamonds

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG830619027 or 830619027. Listed at 19 retailers as of October 26, 2026, with a 214% 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830619027
Dimensions9.27 × 6.57 × 3.88 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.27 mm6.57 mm1.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830619027
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 59.1%

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 26
Current: $2,951 NZD|Low: $378 NZD|High: $2,951 NZD|Avg: $1,136 NZD
Helzberg Diamonds
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 26, 2026
Retailer 11$385 NZD
Retailer 3$431 NZD
Retailer 20$447 NZD
Retailer 14$477 NZD
Retailer 15$477 NZD
Retailer 13$559 NZD
Retailer 8$808 NZD
Retailer 9$820 NZD
Retailer 19$852 NZD
Retailer 17$856 NZD
Retailer 5$928 NZD
Retailer 4$1,118 NZD
Retailer 18$1,537 NZD
Retailer 2$1,542 NZD
Retailer 10$1,548 NZD
Retailer 6$1,630 NZD
Retailer 12$1,709 NZD
Retailer 7$1,757 NZD
Retailer 16$1,918 NZD
Helzberg Diamonds$2,951 NZD

5 data points across 20 retailers

19 retailers$559 NZD to $1,757 NZD

Retailer 1
-
$385 NZD
$217 USD
Price last confirmed 10 days ago
Retailer 2
-
$447 NZD
$252 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$477 NZD
$269 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$477 NZD
$269 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$559 NZD
£248 GBP
View
Retailer 6
-
$808 NZD
ZAR 7,358 ZAR
View
Price last confirmed 10 days ago
Retailer 7
-
$820 NZD
$462 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$852 NZD
$480 USD
View
Retailer 9
-
$856 NZD
£380 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
$928 NZD
$523 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$1,118 NZD
A$969 AUD
View
Price last confirmed 9 days ago
Retailer 12
-
$1,537 NZD
$866 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$1,542 NZD
$869 USD
View
B+
Retailer 14
-
$1,548 NZD
SGD 1,179 SGD
View
B
Retailer 15
-
$1,630 NZD
$919 USD
View
B+
Retailer 16
-
$1,709 NZD
$963 USD
View
B+
Retailer 17
-
$1,757 NZD
$990 USD
View
Retailer 18
-
$1,918 NZD
£851 GBP
View
Price last confirmed 8 days ago
Most Expensive
Helzberg Diamonds
ZXZOJGMHPGIN · Oct 25
$2,951 NZD
$1,663 USD
View
Price last confirmed 8 days ago
18 more retailers have this diamond
Prices start from $559 NZDSave up to $1,197 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 Oval
$559 NZD