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Cushion|Lab Grown|IGI

4.51ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG852637508

Certificate IGI LG852637508

Diamond specifications and retailer prices

From $3,440 NZD
$1,939 USD
As of November 2, 2026
Save $4,097 NZD (54%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $7,538 NZD at Taylor and Hart · As of November 1, 2026
View at Taylor and Hart

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG852637508 or 852637508. Listed at 2 retailers as of November 1, 2026, with prices from $3,440 to $7,538, a $4,097 spread on the same certified stone. Taylor and Hart lists it at $7,538. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG852637508
Dimensions13.18 × 7.17 × 4.78 mm
L/W Ratio1.84
Top View
13.18 mm7.17 mm4.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG852637508
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: LargeDepth 66.7%

Caratlytics Score

How it works →
C
Average
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Price History

Last verified: Nov 2
Current: $3,440 NZD|Low: $3,440 NZD|High: $7,538 NZD|Avg: $6,172 NZD
Retailer 1
Taylor and Hart
November 2, 2026
Retailer 1$3,440 NZD
Taylor and Hart$7,538 NZD

2 data points across 2 retailers

2 retailers$3,440 NZD to $7,538 NZD

Cheapest Retailer
-
$3,440 NZD
$1,939 USD
Most Expensive
C
Taylor and Hart
8LVSKIG · Nov 1
$7,538 NZD
$4,248 USD
View
1 more retailer has this diamond
Prices start from $3,440 NZDSave up to $4,097 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.

C
4.51ct Cushion
$3,440 NZD