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Radiant|Lab Grown|IGI

1.28ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG645498833

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

Certificate IGI LG645498833

Diamond specifications and retailer prices

From $447 NZD
As of November 4, 2026
Save $1,965 NZD (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,411 NZD at Reve Diamonds · As of November 4, 2026
View at Reve 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG645498833 or 645498833. Listed at 19 retailers as of November 4, 2026, with prices from $447 to $2,411, a $1,965 spread on the same certified stone. Reve Diamonds lists it at $2,411. 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

1.28
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645498833
Dimensions7.99 × 5.50 × 3.64 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.99 mm5.50 mm1.28 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645498833
Side View
Table 73.0%Crown 42.7°Girdle: MediumPavilion 36.4°Culet: NoneDepth 66.2%

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: $733 NZD|Low: $429 NZD|High: $2,243 NZD|Avg: $1,144 NZD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12$447 NZD
Retailer 2$553 NZD
Retailer 1$733 NZD
Retailer 10$836 NZD
Retailer 4$929 NZD
Retailer 7$953 NZD
Retailer 5$1,042 NZD
Retailer 6$1,354 NZD
Retailer 9$1,512 NZD
Retailer 11$1,699 NZD
Retailer 3$1,777 NZD
Retailer 8$2,215 NZD

38 data points across 12 retailers

19 retailers$447 NZD to $2,411 NZD

A
Cheapest Retailer
-
$447 NZD
A
Retailer 2
-
$498 NZD
View
Final sale: no returns
A
Retailer 3
-
$518 NZD
View
A
Retailer 4
-
$553 NZD
View
Retailer 5
-
$553 NZD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$733 NZD
View
A
Retailer 7
-
$836 NZD
View
B+
Retailer 8
-
$929 NZD
View
B+
Retailer 9
-
$941 NZD
View
B+
Retailer 10
-
$953 NZD
View
B+
Retailer 11
-
$1,005 NZD
View
B+
Retailer 12
-
$1,042 NZD
View
B+
Retailer 13
-
$1,354 NZD
View
B
Retailer 14
-
$1,512 NZD
View
B
Retailer 15
-
$1,699 NZD
View
B
Retailer 16
-
$1,777 NZD
View
B
Retailer 17
-
$1,868 NZD
View
B
Retailer 18
-
$2,215 NZD
View
Most Expensive
B
Reve Diamonds
66DCE0422 · Nov 4
$2,411 NZD
$1,355 USD
View
18 more retailers have this diamond
Prices start from $447 NZDSave up to $1,965 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
$447 NZD