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Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

VG • E/VS1 • IGI LG628407192

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

Certificate IGI LG628407192

Diamond specifications and retailer prices

From $344 NZD
$193 USD
As of October 27, 2026
Save $2,968 NZD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,312 NZD at Do Amore Diamonds · As of October 29, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG628407192 or 628407192. Listed at 12 retailers as of October 27, 2026, with prices from $344 to $3,312, a $2,968 spread on the same certified stone. Do Amore Diamonds lists it at $3,312. 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
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628407192
Dimensions7.87 × 5.32 × 3.63 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.87 mm5.32 mm1.28 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628407192
Side View
Table 65.0%Crown 42.8°Girdle: MediumPavilion 35.6°Culet: NoneDepth 68.2%

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: Oct 27
Current: $3,312 NZD|Low: $276 NZD|High: $3,312 NZD|Avg: $1,252 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 15$344 NZD
Retailer 3$386 NZD
Retailer 12$399 NZD
Retailer 2$594 NZD
Retailer 17$746 NZD
Retailer 4$785 NZD
Retailer 8$803 NZD
Retailer 7$917 NZD
Retailer 9$956 NZD
Retailer 11$1,153 NZD
Retailer 10$1,182 NZD
Retailer 13$1,378 NZD
Retailer 16$1,515 NZD
Retailer 5$1,763 NZD
Retailer 6$1,768 NZD
Retailer 14$1,899 NZD
Retailer 18$2,332 NZD
Do Amore Diamonds$3,312 NZD

40 data points across 18 retailers

12 retailers$344 NZD to $3,312 NZD

A
Cheapest Retailer
-
$344 NZD
$193 USD
A
Retailer 2
-
$386 NZD
$217 USD
View
Final sale: no returns
A
Retailer 3
-
$399 NZD
$224 USD
View
A
Retailer 4
-
$594 NZD
£263 GBP
View
B+
Retailer 5
-
$746 NZD
$419 USD
View
B+
Retailer 6
-
$1,153 NZD
A$996 AUD
View
B
Retailer 7
-
$1,378 NZD
$774 USD
View
B
Retailer 8
-
$1,515 NZD
$851 USD
View
B
Retailer 9
-
$1,763 NZD
$990 USD
View
B
Retailer 10
-
$1,899 NZD
£840 GBP
View
B
Retailer 11
-
$2,332 NZD
$1,310 USD
View
Most Expensive
B
Do Amore Diamonds
27-E781DC176 · Oct 29
$3,312 NZD
$1,860 USD
View
11 more retailers have this diamond
Prices start from $344 NZDSave up to $2,968 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
$344 NZD