Cushion|Lab Grown|GIA

1.50ct H SI1 Cushion Lab Grown Diamond

ID • H/SI1 • GIA 6382754624

Certificate GIA 6382754624

Diamond specifications and retailer prices

From $448 USD
HK$3,500 HKD
As of October 28, 2026
Save $913 USD (67%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,361 USD at MOH London · As of October 29, 2026
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6382754624. Listed at 4 retailers as of October 28, 2026, with prices from $448 to $1,361, a $913 spread on the same certified stone. MOH London lists it at $1,361. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6382754624
Dimensions7.23 × 6.11 × 4.10 mm
L/W Ratio1.18
Top View
7.23 mm6.11 mm1.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6382754624
Side View
Table 66.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 67.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $1,361 USD|Low: $446 USD|High: $1,370 USD|Avg: $910 USD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3$448 USD
Retailer 2$448 USD
Retailer 5$1,070 USD
Retailer 4$1,254 USD
MOH London$1,361 USD

26 data points across 5 retailers

4 retailers$448 USD to $1,361 USD

A
Cheapest Retailer
-
$448 USD
HK$3,500 HKD
A
Retailer 2
-
$448 USD
£353 GBP
View
B+
Retailer 3
-
$1,254 USD
View
Most Expensive
B+
MOH London
6382754624 · Oct 29
$1,361 USD
£1,072 GBP
View
3 more retailers have this diamond
Prices start from $448 USDSave up to $913 USD

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
1.50ct Cushion
$448 USD