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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 $3,727 AUD
£2,057 GBP
As of November 2, 2026
Save $12,445 AUD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $16,172 AUD 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 $3,727 to $16,172, a $12,445 spread on the same certified stone. Taylor and Hart lists it at $16,172. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $6,123 AUD|Low: $3,726 AUD|High: $25,570 AUD|Avg: $7,861 AUD|-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 6$3,727 AUD
Retailer 2$4,479 AUD
Retailer 12$4,640 AUD
Retailer 4$5,274 AUD
Retailer 8$5,957 AUD
Retailer 1$6,123 AUD
Retailer 7$6,217 AUD
Retailer 11$7,219 AUD
Retailer 5$7,364 AUD
Retailer 3$12,927 AUD
Retailer 9$13,741 AUD
Retailer 10$14,990 AUD

42 data points across 12 retailers

13 retailers$3,727 AUD to $16,172 AUD

A
Cheapest Retailer
-
$3,727 AUD
£2,057 GBP
A
Retailer 2
-
$4,479 AUD
$3,139 USD
View
Final sale: no returns
Retailer 3
-
$4,640 AUD
$3,252 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$5,274 AUD
$3,696 USD
View
B+
Retailer 5
-
$5,957 AUD
$4,175 USD
View
B+
Retailer 6
-
$6,123 AUD
$4,291 USD
View
B+
Retailer 7
-
$6,217 AUD
£3,431 GBP
View
B+
Retailer 8
-
$7,219 AUD
$5,059 USD
View
B+
Retailer 9
-
$7,364 AUD
€4,915 EUR
View
B
Retailer 10
-
$12,927 AUD
$9,060 USD
View
B
Retailer 11
-
$13,741 AUD
$9,630 USD
View
B
Retailer 12
-
$14,990 AUD
$10,505 USD
View
Most Expensive
B
Taylor and Hart
4LSIRYH · Oct 31
$16,172 AUD
$11,333 USD
View
12 more retailers have this diamond
Prices start from $3,727 AUDSave up to $12,445 AUD

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
$3,727 AUD