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Cushion|Lab Grown|GIA

1.50ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • GIA 7476845663

Certificate GIA 7476845663

Diamond specifications and retailer prices

From HK$3,848 HKD
As of November 6, 2026
Save HK$18,355 HKD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$23,460 HKD at Steven Stone · As of November 7, 2026
View at Steven Stone

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7476845663. Listed at 13 retailers as of November 5, 2026, with a 477% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 7476845663
Dimensions7.88 × 6.10 × 4.09 mm
L/W Ratio1.29
Top View
7.88 mm6.10 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7476845663
Side View
Table 64.0%CrownGirdlePavilionCulet: NoneDepth 67.1%

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: Nov 6
Current: HK$7,626 HKD|Low: HK$4,358 HKD|High: HK$39,187 HKD|Avg: HK$13,680 HKD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Steven Stone
November 7, 2026
Retailer 4HK$4,358 HKD
Retailer 7HK$5,361 HKD
Retailer 8HK$6,403 HKD
Retailer 1HK$7,626 HKD
Retailer 9HK$8,214 HKD
Retailer 6HK$14,734 HKD
Retailer 3HK$15,283 HKD
Retailer 2HK$22,203 HKD
Steven StoneHK$23,460 HKD
Retailer 5HK$34,563 HKD

44 data points across 10 retailers

13 retailersHK$3,848 HKD to HK$22,203 HKD

A
Cheapest Retailer
-
HK$3,848 HKD
A
Retailer 2
-
HK$4,358 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$5,361 HKD
View
B+
Retailer 4
-
HK$5,917 HKD
View
B
Retailer 5
-
HK$6,403 HKD
View
B+
Retailer 6
-
HK$7,626 HKD
View
Retailer 7
-
HK$8,214 HKD
View
Price last confirmed 15 days ago
B
Retailer 8
-
HK$14,734 HKD
View
B
Retailer 9
-
HK$15,283 HKD
View
B
Retailer 10
-
HK$18,214 HKD
View
B
Retailer 11
-
HK$22,203 HKD
View
Most Expensive
Steven Stone
338512738 · Nov 7
HK$23,460 HKD
£2,357 GBP
View
Price under review
11 more retailers have this diamond
Prices start from HK$3,848 HKDSave up to HK$18,355 HKD

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
HK$3,848 HKD