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Cushion|Lab Grown|IGI

17.20ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG626438688

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG626438688

Diamond specifications and retailer prices

From $13,223 AUD
£7,314 GBP
As of November 1, 2026
Save $37,867 AUD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $51,091 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 17.2ct lab-grown cushion diamond

This 17.2ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG626438688 or 626438688. Listed at 13 retailers as of October 31, 2026, with prices from $13,223 to $51,091, a $37,867 spread on the same certified stone. Taylor and Hart lists it at $51,091. 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

17.20
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626438688
Dimensions14.66 × 14.46 × 8.89 mm
L/W Ratio1.01
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
14.66 mm14.46 mm17.20 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626438688
Side View
Table 59.0%Crown 34.3°Girdle: THK-VTKPavilion 30.9°Culet: NoneDepth 61.5%

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 1
Current: $13,223 AUD|Low: $13,218 AUD|High: $51,091 AUD|Avg: $24,953 AUD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 1, 2026
Retailer 1$13,223 AUD
Retailer 4$15,153 AUD
Retailer 2$15,894 AUD
Retailer 13$16,272 AUD
Retailer 11$16,464 AUD
Retailer 10$16,556 AUD
Retailer 12$17,576 AUD
Retailer 8$22,894 AUD
Retailer 7$25,486 AUD
Retailer 5$26,058 AUD
Retailer 6$27,489 AUD
Retailer 9$35,348 AUD
Retailer 3$45,868 AUD
Taylor and Hart$51,091 AUD

35 data points across 14 retailers

13 retailers$13,223 AUD to $51,091 AUD

A
Cheapest Retailer
-
$13,223 AUD
£7,314 GBP
B+
Retailer 2
-
$15,153 AUD
$10,644 USD
View
B+
Retailer 3
-
$15,894 AUD
$11,165 USD
View
Final sale: no returns
B+
Retailer 4
-
$16,272 AUD
$11,430 USD
View
Retailer 5
-
$16,464 AUD
$11,565 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$16,556 AUD
$11,630 USD
View
B+
Retailer 7
-
$17,576 AUD
$12,346 USD
View
B
Retailer 8
-
$22,894 AUD
$16,082 USD
View
B
Retailer 9
-
$25,486 AUD
ZAR 289,221 ZAR
View
B
Retailer 10
-
$27,489 AUD
€18,390 EUR
View
B
Retailer 11
-
$35,348 AUD
$24,830 USD
View
B
Retailer 12
-
$45,868 AUD
$32,220 USD
View
Most Expensive
B
Taylor and Hart
TYVKW0T · Oct 31
$51,091 AUD
$35,888 USD
View
12 more retailers have this diamond
Prices start from $13,223 AUDSave up to $37,867 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
17.20ct Cushion
$13,223 AUD