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Cushion|Lab Grown|IGI

12.26ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG625476935

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG625476935

Diamond specifications and retailer prices

From HK$20,492 HKD
£2,057 GBP
As of November 2, 2026
Save HK$68,430 HKD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$88,922 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.26ct lab-grown cushion diamond

This 12.26ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625476935 or 625476935. Listed at 13 retailers as of October 31, 2026, with prices from HK$20,492 to HK$88,922, a HK$68,430 spread on the same certified stone. Taylor and Hart lists it at HK$88,922. 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

12.26
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625476935
Dimensions14.83 × 12.42 × 8.07 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.83 mm12.42 mm12.26 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625476935
Side View
Table 62.0%Crown 39.8°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 65.0%

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 2
Current: HK$33,668 HKD|Low: HK$20,486 HKD|High: HK$140,602 HKD|Avg: HK$43,226 HKD|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6HK$20,492 HKD
Retailer 2HK$24,629 HKD
Retailer 12HK$25,516 HKD
Retailer 4HK$28,999 HKD
Retailer 8HK$32,757 HKD
Retailer 1HK$33,668 HKD
Retailer 7HK$34,187 HKD
Retailer 11HK$39,693 HKD
Retailer 5HK$40,492 HKD
Retailer 3HK$71,083 HKD
Retailer 9HK$75,558 HKD
Retailer 10HK$82,423 HKD

42 data points across 12 retailers

13 retailersHK$20,492 HKD to HK$88,922 HKD

A
Cheapest Retailer
-
HK$20,492 HKD
£2,057 GBP
A
Retailer 2
-
HK$24,629 HKD
$3,139 USD
View
Final sale: no returns
Retailer 3
-
HK$25,516 HKD
$3,252 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
HK$28,999 HKD
$3,696 USD
View
B+
Retailer 5
-
HK$32,757 HKD
$4,175 USD
View
B+
Retailer 6
-
HK$33,668 HKD
$4,291 USD
View
B+
Retailer 7
-
HK$34,187 HKD
£3,431 GBP
View
B+
Retailer 8
-
HK$39,693 HKD
$5,059 USD
View
B+
Retailer 9
-
HK$40,492 HKD
€4,915 EUR
View
B
Retailer 10
-
HK$71,083 HKD
$9,060 USD
View
B
Retailer 11
-
HK$75,558 HKD
$9,630 USD
View
B
Retailer 12
-
HK$82,423 HKD
$10,505 USD
View
Most Expensive
B
Taylor and Hart
4LSIRYH · Oct 31
HK$88,922 HKD
$11,333 USD
View
12 more retailers have this diamond
Prices start from HK$20,492 HKDSave up to HK$68,430 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
12.26ct Cushion
HK$20,492 HKD