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Cushion|Lab Grown|GIA

1.56ct F SI1 Cushion Lab Grown Diamond

EX • F/SI1

Diamond specifications and retailer prices

From HK$4,924 HKD
£494 GBP
As of November 2, 2026
Save HK$3,354 HKD (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$8,278 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.56ct lab-grown cushion diamond

This 1.56ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F 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. Listed at 2 retailers as of October 31, 2026, with prices from HK$4,924 to HK$8,278, a HK$3,354 spread on the same certified stone. Blue Nile lists it at HK$8,278. 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

1.56
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions8.04 × 6.35 × 0.00 mm
L/W Ratio1.27
Top View
8.04 mm6.35 mm1.56 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 55.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: HK$8,278 HKD|Low: HK$4,922 HKD|High: HK$10,027 HKD|Avg: HK$6,656 HKD
Blue Nile
Retailer 2
November 2, 2026
Retailer 2HK$4,924 HKD
Blue NileHK$8,278 HKD

38 data points across 2 retailers

2 retailersHK$4,924 HKD to HK$8,278 HKD

A
Cheapest Retailer
-
HK$4,924 HKD
£494 GBP
Most Expensive
B
Blue Nile
19853212 · Oct 31
HK$8,278 HKD
$1,055 USD
View
1 more retailer has this diamond
Prices start from HK$4,924 HKDSave up to HK$3,354 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
1.56ct Cushion
HK$4,924 HKD