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Cushion|Lab Grown|IGI

11.79ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG818631890

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818631890

Diamond specifications and retailer prices

From $10,880 AUD
£6,004 GBP
As of November 2, 2026
Save $19,780 AUD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $30,660 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 11.79ct lab-grown cushion diamond

This 11.79ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818631890 or 818631890. Listed at 10 retailers as of October 31, 2026, with prices from $10,880 to $30,660, a $19,780 spread on the same certified stone. Taylor and Hart lists it at $30,660. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.79
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle46.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818631890
Dimensions16.91 × 10.88 × 6.80 mm
L/W Ratio1.55
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.91 mm10.88 mm11.79 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818631890
Side View
Table 63.0%Crown 36.6°Girdle: MED-THKPavilion 46.4°Culet: LargeDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $10,880 AUD|Low: $8,590 AUD|High: $30,660 AUD|Avg: $16,656 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Taylor and Hart
November 2, 2026
Retailer 1$10,880 AUD
Retailer 4$11,808 AUD
Retailer 8$12,134 AUD
Retailer 9$13,139 AUD
Retailer 6$13,237 AUD
Retailer 3$13,261 AUD
Retailer 5$16,133 AUD
Retailer 2$16,292 AUD
Retailer 7$26,765 AUD
Taylor and Hart$30,660 AUD

39 data points across 10 retailers

10 retailers$10,880 AUD to $30,660 AUD

B+
Cheapest Retailer
-
$10,880 AUD
£6,004 GBP
B
Retailer 2
-
$11,808 AUD
$8,275 USD
View
B
Retailer 3
-
$12,134 AUD
£6,696 GBP
View
B
Retailer 4
-
$13,139 AUD
$9,208 USD
View
B
Retailer 5
-
$13,237 AUD
$9,277 USD
View
B
Retailer 6
-
$13,261 AUD
ZAR 150,133 ZAR
View
B
Retailer 7
-
$16,133 AUD
$11,306 USD
View
B
Retailer 8
-
$16,292 AUD
View
B
Retailer 9
-
$26,765 AUD
SGD 25,348 SGD
View
Most Expensive
B
Taylor and Hart
3Y014ZP · Oct 31
$30,660 AUD
$21,487 USD
View
9 more retailers have this diamond
Prices start from $10,880 AUDSave up to $19,780 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.

B+
11.79ct Cushion
$10,880 AUD