CaratHunter
Plans
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 $3,340 SGD
£2,057 GBP
As of November 2, 2026
Save $11,154 SGD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,494 SGD 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 $3,340 to $14,494, a $11,154 spread on the same certified stone. Taylor and Hart lists it at $14,494. 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: $5,488 SGD|Low: $3,339 SGD|High: $22,918 SGD|Avg: $7,046 SGD|-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$3,340 SGD
Retailer 2$4,014 SGD
Retailer 12$4,159 SGD
Retailer 4$4,727 SGD
Retailer 8$5,339 SGD
Retailer 1$5,488 SGD
Retailer 7$5,572 SGD
Retailer 11$6,470 SGD
Retailer 5$6,600 SGD
Retailer 3$11,586 SGD
Retailer 9$12,316 SGD
Retailer 10$13,435 SGD

42 data points across 12 retailers

13 retailers$3,340 SGD to $14,494 SGD

A
Cheapest Retailer
-
$3,340 SGD
£2,057 GBP
A
Retailer 2
-
$4,014 SGD
$3,139 USD
View
Final sale: no returns
Retailer 3
-
$4,159 SGD
$3,252 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$4,727 SGD
$3,696 USD
View
B+
Retailer 5
-
$5,339 SGD
$4,175 USD
View
B+
Retailer 6
-
$5,488 SGD
$4,291 USD
View
B+
Retailer 7
-
$5,572 SGD
£3,431 GBP
View
B+
Retailer 8
-
$6,470 SGD
$5,059 USD
View
B+
Retailer 9
-
$6,600 SGD
€4,915 EUR
View
B
Retailer 10
-
$11,586 SGD
$9,060 USD
View
B
Retailer 11
-
$12,316 SGD
$9,630 USD
View
B
Retailer 12
-
$13,435 SGD
$10,505 USD
View
Most Expensive
B
Taylor and Hart
4LSIRYH · Oct 31
$14,494 SGD
$11,333 USD
View
12 more retailers have this diamond
Prices start from $3,340 SGDSave up to $11,154 SGD

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
$3,340 SGD