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Cushion|Lab Grown|GIA

1.50ct H SI1 Cushion Lab Grown Diamond

GD • H/SI1 • GIA 6155562855

Certificate GIA 6155562855

Diamond specifications and retailer prices

From $8,942 NZD
$5,040 USD
As of October 30, 2026
Save $302 NZD (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $9,244 NZD at Jared · As of October 30, 2026
View at Jared

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6155562855. Listed at 3 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.50
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginLab Grown
Grading LabGIA
CertificateGIA 6155562855
Dimensions6.33 × 6.02 mm
L/W Ratio1.05
Top View
6.33 mm6.02 mm1.50 ctH / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6155562855
Side View
Table 65.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $9,244 NZD|Low: $8,942 NZD|High: $10,522 NZD|Avg: $9,793 NZD|-12.1%
Jared
Retailer 2
Retailer 3
June 18, 2026
Retailer 2$8,942 NZD
Retailer 3$8,942 NZD
Jared$9,244 NZD

6 data points across 3 retailers

3 retailers$8,942 NZD to $9,244 NZD

B
Cheapest Retailer
-
$8,942 NZD
$5,040 USD
B
Retailer 2
-
$8,942 NZD
$5,040 USD
View
Most Expensive
C
Jared
146739188 · Oct 30
$9,244 NZD
$5,210 USD
View
2 more retailers have this diamond
Prices start from $8,942 NZDSave up to $302 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
1.50ct Cushion
$8,942 NZD