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Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG751511531

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

Certificate IGI LG751511531

Diamond specifications and retailer prices

From $367 NZD
$206 USD
As of October 27, 2026
Save $3,141 NZD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,508 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 top-tier cut grade and certified by IGI LG751511531 or 751511531. Listed at 17 retailers as of October 27, 2026, with prices from $367 to $3,508, a $3,141 spread on the same certified stone. Do Amore Diamonds lists it at $3,508. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG751511531
Dimensions7.80 × 5.33 × 3.62 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.80 mm5.33 mm1.28 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG751511531
Side View
Table 64.0%Crown 41.6°Girdle: MediumPavilion 34.9°Culet: NoneDepth 67.9%

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: Oct 27
Current: $3,508 NZD|Low: $270 NZD|High: $3,508 NZD|Avg: $1,265 NZD
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 20
October 29, 2026
Retailer 9$270 NZD
Retailer 19$367 NZD
Retailer 7$410 NZD
Retailer 6$454 NZD
Retailer 20$454 NZD
Retailer 13$631 NZD
Retailer 3$668 NZD
Retailer 5$782 NZD
Retailer 2$932 NZD
Retailer 4$1,026 NZD
Retailer 16$1,157 NZD
Retailer 14$1,222 NZD
Retailer 18$1,464 NZD
Retailer 17$1,610 NZD
Retailer 10$1,818 NZD
Retailer 11$1,916 NZD
Retailer 15$2,010 NZD
Retailer 12$2,157 NZD
Retailer 8$2,404 NZD
Do Amore Diamonds$3,508 NZD

32 data points across 20 retailers

17 retailers$367 NZD to $3,508 NZD

A
Cheapest Retailer
-
$367 NZD
$206 USD
A
Retailer 2
-
$410 NZD
$230 USD
View
Final sale: no returns
A
Retailer 3
-
$454 NZD
$255 USD
View
A
Retailer 4
-
$454 NZD
$255 USD
View
A
Retailer 5
-
$631 NZD
£279 GBP
View
A
Retailer 6
-
$668 NZD
$375 USD
View
A
Retailer 7
-
$782 NZD
$439 USD
View
B+
Retailer 8
-
$932 NZD
£412 GBP
View
B+
Retailer 9
-
$1,026 NZD
$576 USD
View
Retailer 10
-
$1,157 NZD
$650 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$1,222 NZD
A$1,056 AUD
View
B
Retailer 12
-
$1,464 NZD
$822 USD
View
B
Retailer 13
-
$1,610 NZD
$904 USD
View
B
Retailer 14
-
$1,916 NZD
$1,076 USD
View
B
Retailer 15
-
$2,010 NZD
£889 GBP
View
B
Retailer 16
-
$2,157 NZD
$1,211 USD
View
Most Expensive
B
Do Amore Diamonds
27-164EC14EC · Oct 29
$3,508 NZD
$1,970 USD
View
16 more retailers have this diamond
Prices start from $367 NZDSave up to $3,141 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
$367 NZD