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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 $16,481 NZD
£7,314 GBP
As of November 1, 2026
Save $47,196 NZD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $63,677 NZD 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 $16,481 to $63,677, a $47,196 spread on the same certified stone. Taylor and Hart lists it at $63,677. 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: $16,481 NZD|Low: $16,475 NZD|High: $63,677 NZD|Avg: $31,100 NZD|-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$16,481 NZD
Retailer 4$18,886 NZD
Retailer 2$19,810 NZD
Retailer 13$20,280 NZD
Retailer 11$20,520 NZD
Retailer 10$20,635 NZD
Retailer 12$21,906 NZD
Retailer 8$28,534 NZD
Retailer 7$31,765 NZD
Retailer 5$32,478 NZD
Retailer 6$34,261 NZD
Retailer 9$44,056 NZD
Retailer 3$57,168 NZD
Taylor and Hart$63,677 NZD

35 data points across 14 retailers

13 retailers$16,481 NZD to $63,677 NZD

A
Cheapest Retailer
-
$16,481 NZD
£7,314 GBP
B+
Retailer 2
-
$18,886 NZD
$10,644 USD
View
B+
Retailer 3
-
$19,810 NZD
$11,165 USD
View
Final sale: no returns
B+
Retailer 4
-
$20,280 NZD
$11,430 USD
View
Retailer 5
-
$20,520 NZD
$11,565 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$20,635 NZD
$11,630 USD
View
B+
Retailer 7
-
$21,906 NZD
$12,346 USD
View
B
Retailer 8
-
$28,534 NZD
$16,082 USD
View
B
Retailer 9
-
$31,765 NZD
ZAR 289,221 ZAR
View
B
Retailer 10
-
$34,261 NZD
€18,390 EUR
View
B
Retailer 11
-
$44,056 NZD
$24,830 USD
View
B
Retailer 12
-
$57,168 NZD
$32,220 USD
View
Most Expensive
B
Taylor and Hart
TYVKW0T · Oct 31
$63,677 NZD
$35,888 USD
View
12 more retailers have this diamond
Prices start from $16,481 NZDSave up to $47,196 NZD

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
$16,481 NZD