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Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG840629726

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840629726

Diamond specifications and retailer prices

From $411 NZD
As of November 4, 2026
Save $2,658 NZD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,069 NZD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG840629726 or 840629726. Listed at 15 retailers as of November 4, 2026, with prices from $411 to $3,069, a $2,658 spread on the same certified stone. Helzberg Diamonds lists it at $3,069. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840629726
Dimensions7.87 × 5.31 × 3.65 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.87 mm5.31 mm1.23 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840629726
Side View
Table 64.0%Crown 32.1°Girdle: STK-THKPavilion 36°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,069 NZD|Low: $411 NZD|High: $3,069 NZD|Avg: $1,220 NZD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 3$411 NZD
Retailer 2$516 NZD
Retailer 11$772 NZD
Retailer 10$784 NZD
Retailer 13$786 NZD
Retailer 7$829 NZD
Retailer 14$1,064 NZD
Retailer 5$1,112 NZD
Retailer 9$1,187 NZD
Retailer 4$1,487 NZD
Retailer 6$1,557 NZD
Retailer 12$1,717 NZD
Retailer 8$1,818 NZD
Helzberg Diamonds$3,069 NZD

11 data points across 14 retailers

15 retailers$411 NZD to $3,069 NZD

A
Cheapest Retailer
-
$411 NZD
Final sale: no returns
A
Retailer 2
-
$516 NZD
View
A
Retailer 3
-
$772 NZD
View
A
Retailer 4
-
$784 NZD
View
A
Retailer 5
-
$786 NZD
View
A
Retailer 6
-
$829 NZD
View
B+
Retailer 7
-
$1,064 NZD
View
Retailer 8
-
$1,112 NZD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$1,187 NZD
View
B
Retailer 10
-
$1,487 NZD
View
B
Retailer 11
-
$1,557 NZD
View
Retailer 12
-
$1,717 NZD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$1,818 NZD
View
B
Retailer 14
-
$2,241 NZD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMIPNIM · Nov 4
$3,069 NZD
$1,725 USD
View
14 more retailers have this diamond
Prices start from $411 NZDSave up to $2,658 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
1.23ct Cushion
$411 NZD