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Cushion|Lab Grown|IGI

0.51ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG707506817

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG707506817

Diamond specifications and retailer prices

From $269 NZD
$151 USD
As of October 29, 2026
Save $1,493 NZD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,518 NZD at MOH London · As of October 29, 2026
View at MOH London

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG707506817 or 707506817. Listed at 11 retailers as of October 28, 2026, with a 555% 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

0.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707506817
Dimensions4.74 × 4.67 × 2.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
4.74 mm4.67 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG707506817
Side View
Table 65.0%Crown 33.6°Girdle: MED-THKPavilion 36.2°Culet: NoneDepth 61.5%

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: Oct 29
Current: $2,518 NZD|Low: $194 NZD|High: $2,536 NZD|Avg: $829 NZD|+76.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3$269 NZD
Retailer 9$299 NZD
Retailer 8$410 NZD
Retailer 2$506 NZD
Retailer 6$537 NZD
Retailer 5$542 NZD
Retailer 10$565 NZD
Retailer 4$578 NZD
Retailer 11$730 NZD
Retailer 7$1,575 NZD
Retailer 12$1,762 NZD
MOH London$2,518 NZD

35 data points across 12 retailers

11 retailers$269 NZD to $1,762 NZD

A
Cheapest Retailer
-
$269 NZD
$151 USD
Final sale: no returns
A
Retailer 2
-
$299 NZD
$168 USD
View
A
Retailer 3
-
$410 NZD
$230 USD
View
B+
Retailer 4
-
$506 NZD
£224 GBP
View
B+
Retailer 5
-
$537 NZD
€287 EUR
View
B+
Retailer 6
-
$542 NZD
ZAR 4,917 ZAR
View
B+
Retailer 7
-
$565 NZD
$317 USD
View
B+
Retailer 8
-
$730 NZD
$410 USD
View
B
Retailer 9
-
$1,575 NZD
£696 GBP
View
B
Retailer 10
-
$1,762 NZD
$989 USD
View
Most Expensive
B
MOH London
LG707506817 · Oct 29
$2,518 NZD
£1,113 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $269 NZDSave up to $1,493 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 Cushion
$269 NZD