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Radiant|Lab Grown|IGI

1.28ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG751511564

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

Certificate IGI LG751511564

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)
19 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 top-tier cut grade and certified by IGI LG751511564 or 751511564. Listed at 19 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. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG751511564
Dimensions7.93 × 5.31 × 3.59 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.93 mm5.31 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG751511564
Side View
Table 66.0%Crown 43.9°Girdle: MediumPavilion 35°Culet: NoneDepth 67.6%

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 4
Current: $3,665 NZD|Low: $381 NZD|High: $3,665 NZD|Avg: $1,257 NZD
Do Amore Diamonds
Retailer 2
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November 5, 2026
Retailer 21$381 NZD
Retailer 8$425 NZD
Retailer 6$441 NZD
Retailer 10$473 NZD
Retailer 18$473 NZD
Retailer 2$692 NZD
Retailer 3$713 NZD
Retailer 14$747 NZD
Retailer 12$752 NZD
Retailer 4$809 NZD
Retailer 13$977 NZD
Retailer 22$1,042 NZD
Retailer 17$1,277 NZD
Retailer 20$1,525 NZD
Retailer 15$1,626 NZD
Retailer 9$1,678 NZD
Retailer 19$1,795 NZD
Retailer 7$1,980 NZD
Retailer 16$2,085 NZD
Retailer 5$2,202 NZD
Retailer 11$2,241 NZD
Do Amore Diamonds$3,665 NZD

23 data points across 22 retailers

19 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
A
Retailer 4
-
$473 NZD
View
Retailer 5
-
$473 NZD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$692 NZD
View
A
Retailer 7
-
$713 NZD
View
A
Retailer 8
-
$809 NZD
View
B+
Retailer 9
-
$977 NZD
View
B+
Retailer 10
-
$1,042 NZD
View
Retailer 11
-
$1,275 NZD
View
Price last confirmed 58 days ago
B+
Retailer 12
-
$1,277 NZD
View
B
Retailer 13
-
$1,525 NZD
View
B
Retailer 14
-
$1,678 NZD
View
B
Retailer 15
-
$1,795 NZD
View
B
Retailer 16
-
$1,980 NZD
View
B
Retailer 17
-
$2,085 NZD
View
B
Retailer 18
-
$2,202 NZD
View
Most Expensive
B
Do Amore Diamonds
27-83DA61BC3 · Nov 4
$3,665 NZD
$2,060 USD
View
18 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