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Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG743574650

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG743574650

Diamond specifications and retailer prices

From $351 NZD
As of November 4, 2026
Save $3,764 NZD (91%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $4,116 NZD at Yadav Diamonds · As of November 4, 2026
View at Yadav Diamonds

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG743574650 or 743574650. Listed at 28 retailers as of November 4, 2026, with prices from $351 to $4,116, a $3,764 spread on the same certified stone. Yadav Diamonds lists it at $4,116. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743574650
Dimensions7.67 × 5.46 × 3.67 mm
L/W Ratio1.40
Culet sizePointed
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
7.67 mm5.46 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743574650
Side View
Table 65.0%Crown 39.8°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 67.2%

Caratlytics Score

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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: $885 NZD|Low: $337 NZD|High: $3,530 NZD|Avg: $1,262 NZD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 5, 2026
Retailer 3$351 NZD
Retailer 8$408 NZD
Retailer 4$436 NZD
Retailer 9$436 NZD
Retailer 16$777 NZD
Retailer 13$830 NZD
Retailer 1$885 NZD
Retailer 10$1,008 NZD
Retailer 12$1,176 NZD
Retailer 18$1,407 NZD
Retailer 5$1,547 NZD
Retailer 11$1,590 NZD
Retailer 6$1,762 NZD
Retailer 17$1,889 NZD
Retailer 2$1,891 NZD
Retailer 14$1,928 NZD
Retailer 7$2,324 NZD
Retailer 15$3,530 NZD

45 data points across 18 retailers

28 retailers$351 NZD to $4,116 NZD

A
Cheapest Retailer
-
$351 NZD
A
Retailer 2
-
$392 NZD
View
Final sale: no returns
A
Retailer 3
-
$408 NZD
View
Retailer 4
-
$436 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$436 NZD
View
B+
Retailer 6
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$585 NZD
View
A
Retailer 7
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$777 NZD
View
A
Retailer 8
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$830 NZD
View
A
Retailer 9
-
$885 NZD
View
A
Retailer 10
-
$887 NZD
View
B+
Retailer 11
-
$1,008 NZD
View
B+
Retailer 12
-
$1,176 NZD
View
B+
Retailer 13
-
$1,407 NZD
View
B+
Retailer 14
-
$1,547 NZD
View
B+
Retailer 15
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$1,590 NZD
View
B+
Retailer 16
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$1,595 NZD
View
B+
Retailer 17
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$1,762 NZD
View
B
Retailer 18
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$1,852 NZD
View
Retailer 19
-
$1,889 NZD
View
Price last confirmed 18 days ago
B
Retailer 20
-
$1,891 NZD
View
B+
Retailer 21
-
$1,928 NZD
View
B
Retailer 22
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$2,108 NZD
View
B
Retailer 23
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$2,324 NZD
View
B
Retailer 24
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$2,998 NZD
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B
Retailer 25
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$2,998 NZD
View
B
Retailer 26
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$3,371 NZD
View
B
Retailer 27
-
$3,530 NZD
View
Most Expensive
B
Yadav Diamonds
13210009 · Nov 4
$4,116 NZD
$2,320 USD
View
27 more retailers have this diamond
Prices start from $351 NZDSave up to $3,764 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
1.28ct Radiant
$351 NZD