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Cushion|Lab Grown|IGI

0.51ct D VS2 Cushion Lab Grown Diamond

VG • D/VS2 • IGI LG842631116

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG842631116

Diamond specifications and retailer prices

From $532 NZD
As of November 1, 2026
Save $1,558 NZD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,371 NZD at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG842631116 or 842631116. Listed at 7 retailers as of November 1, 2026, with a 293% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842631116
Dimensions5.21 × 4.04 × 2.85 mm
L/W Ratio1.29
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
5.21 mm4.04 mm0.51 ctD / VS2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG842631116
Side View
Table 63.0%Crown 37°Girdle: STK-THKPavilion 35.6°CuletDepth 70.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $812 NZD|Low: $532 NZD|High: $2,371 NZD|Avg: $1,301 NZD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
November 4, 2026
Retailer 2$532 NZD
Retailer 4$607 NZD
Retailer 5$681 NZD
Retailer 1$812 NZD
Retailer 3$2,090 NZD
Taylor and Hart$2,371 NZD

20 data points across 6 retailers

7 retailers$532 NZD to $2,090 NZD

B+
Cheapest Retailer
-
$532 NZD
B+
Retailer 2
-
$607 NZD
View
B+
Retailer 3
-
$681 NZD
View
B
Retailer 4
-
$812 NZD
View
B
Retailer 5
-
$887 NZD
View
B
Retailer 6
-
$2,090 NZD
View
Most Expensive
Taylor and Hart
PYXQA6G · Nov 4
$2,371 NZD
$1,337 USD
View
Price under review
6 more retailers have this diamond
Prices start from $532 NZDSave up to $1,558 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.

B+
0.51ct Cushion
$532 NZD