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Round|Lab Grown|IGI

1.00ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG816606638

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816606638

Diamond specifications and retailer prices

From $295 NZD
As of November 3, 2026
Save $1,661 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,956 NZD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816606638 or 816606638. Listed at 22 retailers as of November 2, 2026, with prices from $295 to $1,956, a $1,661 spread on the same certified stone. Helzberg Diamonds lists it at $1,956. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816606638
Dimensions6.41 × 6.38 × 3.97 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.41 mm6.38 mm1.00 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816606638
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $640 NZD|Low: $281 NZD|High: $1,929 NZD|Avg: $765 NZD|+4.3%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 4, 2026
Retailer 9$295 NZD
Retailer 7$331 NZD
Retailer 19$343 NZD
Retailer 3$366 NZD
Retailer 6$366 NZD
Retailer 13$629 NZD
Retailer 18$631 NZD
Retailer 1$640 NZD
Retailer 12$651 NZD
Retailer 4$660 NZD
Retailer 11$711 NZD
Retailer 2$795 NZD
Retailer 17$891 NZD
Retailer 14$907 NZD
Retailer 16$964 NZD
Retailer 10$1,177 NZD
Retailer 8$1,273 NZD
Retailer 15$1,710 NZD
Retailer 5$1,929 NZD

39 data points across 19 retailers

22 retailers$295 NZD to $1,956 NZD

A
Cheapest Retailer
-
$295 NZD
A
Retailer 2
-
$331 NZD
View
Final sale: no returns
A
Retailer 3
-
$343 NZD
View
Retailer 4
-
$366 NZD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$366 NZD
View
A
Retailer 6
-
$512 NZD
View
A
Retailer 7
-
$629 NZD
View
B+
Retailer 8
-
$631 NZD
View
B+
Retailer 9
-
$640 NZD
View
B+
Retailer 10
-
$651 NZD
View
B+
Retailer 11
-
$660 NZD
View
Retailer 12
-
$711 NZD
View
Price last confirmed 31 days ago
B+
Retailer 13
-
$795 NZD
View
B+
Retailer 14
-
$891 NZD
View
B+
Retailer 15
-
$907 NZD
View
B+
Retailer 16
-
$964 NZD
View
B
Retailer 17
-
$1,177 NZD
View
B
Retailer 18
-
$1,259 NZD
View
B
Retailer 19
-
$1,273 NZD
View
B
Retailer 20
-
$1,710 NZD
View
B
Retailer 21
-
$1,929 NZD
View
Most Expensive
B
Helzberg Diamonds
ZXZOHMMGMMJO · Nov 2
$1,956 NZD
$1,100 USD
View
21 more retailers have this diamond
Prices start from $295 NZDSave up to $1,661 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
1.00ct Round
$295 NZD