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Cushion|Lab Grown|IGI

11.09ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG678596589

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG678596589

Diamond specifications and retailer prices

From $4,870 NZD
$2,740 USD
As of November 2, 2026
Save $11,129 NZD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,999 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 11.09ct lab-grown cushion diamond

This 11.09ct 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 LG678596589 or 678596589. Listed at 11 retailers as of October 31, 2026, with prices from $4,870 to $15,999, a $11,129 spread on the same certified stone. Taylor and Hart lists it at $15,999. 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

11.09
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678596589
Dimensions15.34 × 11.73 × 7.57 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.34 mm11.73 mm11.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678596589
Side View
Table 60.0%Crown 35.6°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 64.5%

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 2
Current: $6,250 NZD|Low: $3,696 NZD|High: $16,466 NZD|Avg: $8,975 NZD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 2, 2026
Retailer 6$3,696 NZD
Retailer 7$4,578 NZD
Retailer 5$4,870 NZD
Retailer 1$6,250 NZD
Retailer 4$7,087 NZD
Retailer 10$7,148 NZD
Retailer 3$8,483 NZD
Retailer 8$8,695 NZD
Retailer 2$12,224 NZD
Retailer 9$13,035 NZD
Taylor and Hart$15,999 NZD

43 data points across 11 retailers

11 retailers$4,870 NZD to $15,999 NZD

Retailer 1
-
$3,696 NZD
£1,638 GBP
Price last confirmed 16 days ago
Retailer 2
-
$4,578 NZD
$2,576 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$4,870 NZD
$2,740 USD
View
A
Retailer 4
-
$6,250 NZD
£2,769 GBP
View
A
Retailer 5
-
$7,087 NZD
ZAR 64,423 ZAR
View
A
Retailer 6
-
$7,148 NZD
$4,022 USD
View
B+
Retailer 7
-
$8,483 NZD
A$7,343 AUD
View
B+
Retailer 8
-
$8,695 NZD
£3,852 GBP
View
B+
Retailer 9
-
$12,224 NZD
$6,878 USD
View
B+
Retailer 10
-
$13,035 NZD
$7,334 USD
View
Most Expensive
B
Taylor and Hart
BUENFQE · Oct 31
$15,999 NZD
$9,002 USD
View
10 more retailers have this diamond
Prices start from $4,870 NZDSave up to $11,129 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
11.09ct Cushion
$4,870 NZD