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0.51ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG844659030

Shape and cutting style on the report: Round brilliant

Certificate IGI LG844659030

Diamond specifications and retailer prices

From $364 NZD
$205 USD
As of November 1, 2026
Save $402 NZD (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $766 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844659030 or 844659030. Listed at 5 retailers as of October 31, 2026, with prices from $364 to $766, a $402 spread on the same certified stone. Taylor and Hart lists it at $766. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844659030
Dimensions5.19 × 5.14 × 3.17 mm
L/W Ratio1.01
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
5.19 mm5.14 mm0.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844659030
Side View
Table 57.0%Crown 34.3°Girdle: MediumPavilion 41.1°CuletDepth 61.5%

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: Nov 1
Current: $387 NZD|Low: $364 NZD|High: $766 NZD|Avg: $518 NZD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 2, 2026
Retailer 2$364 NZD
Retailer 1$387 NZD
Retailer 4$429 NZD
Retailer 3$596 NZD
Taylor and Hart$766 NZD

4 data points across 5 retailers

5 retailers$364 NZD to $766 NZD

A
Cheapest Retailer
-
$364 NZD
$205 USD
B+
Retailer 2
-
$387 NZD
£172 GBP
View
B+
Retailer 3
-
$429 NZD
$242 USD
View
B
Retailer 4
-
$596 NZD
$336 USD
View
Most Expensive
B
Taylor and Hart
6WZ7S80 · Oct 31
$766 NZD
$432 USD
View
4 more retailers have this diamond
Prices start from $364 NZDSave up to $402 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
0.51ct Round
$364 NZD