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Radiant|Lab Grown|IGI

1.28ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG640416964

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

Certificate IGI LG640416964

Diamond specifications and retailer prices

From $381 NZD
As of November 4, 2026
Save $3,284 NZD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,665 NZD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore 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 LG640416964 or 640416964. Listed at 17 retailers as of November 4, 2026, with prices from $381 to $3,665, a $3,284 spread on the same certified stone. Do Amore Diamonds lists it at $3,665. 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 angle41.9°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640416964
Dimensions7.87 × 5.25 × 3.60 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.87 mm5.25 mm1.28 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640416964
Side View
Table 64.0%Crown 41.9°Girdle: MediumPavilion 35.6°Culet: NoneDepth 68.6%

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: $977 NZD|Low: $366 NZD|High: $2,473 NZD|Avg: $1,086 NZD|+3.6%
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
Retailer 14
November 5, 2026
Retailer 10$381 NZD
Retailer 5$425 NZD
Retailer 2$441 NZD
Retailer 3$473 NZD
Retailer 12$473 NZD
Retailer 14$809 NZD
Retailer 1$977 NZD
Retailer 4$1,042 NZD
Retailer 7$1,277 NZD
Retailer 11$1,281 NZD
Retailer 9$1,525 NZD
Retailer 13$1,678 NZD
Retailer 8$2,088 NZD
Retailer 6$2,473 NZD

44 data points across 14 retailers

17 retailers$381 NZD to $3,665 NZD

A
Cheapest Retailer
-
$381 NZD
A
Retailer 2
-
$425 NZD
View
Final sale: no returns
A
Retailer 3
-
$441 NZD
View
Retailer 4
-
$473 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$473 NZD
View
A
Retailer 6
-
$713 NZD
View
B+
Retailer 7
-
$809 NZD
View
B+
Retailer 8
-
$977 NZD
View
B+
Retailer 9
-
$1,042 NZD
View
B+
Retailer 10
-
$1,277 NZD
View
Retailer 11
-
$1,281 NZD
View
Price last confirmed 18 days ago
B
Retailer 12
-
$1,525 NZD
View
B
Retailer 13
-
$1,678 NZD
View
B
Retailer 14
-
$1,980 NZD
View
B
Retailer 15
-
$2,088 NZD
View
B
Retailer 16
-
$2,202 NZD
View
Most Expensive
B
Do Amore Diamonds
27-C161B56EA · Nov 4
$3,665 NZD
$2,060 USD
View
16 more retailers have this diamond
Prices start from $381 NZDSave up to $3,284 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
$381 NZD