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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG783630221

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

Certificate IGI LG783630221

Diamond specifications and retailer prices

From $561 NZD
$316 USD
As of November 1, 2026
Save $1,936 NZD (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,550 NZD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG783630221 or 783630221. Listed at 21 retailers as of November 1, 2026, with a 345% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle28.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783630221
Dimensions8.43 × 5.43 × 3.59 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.43 mm5.43 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783630221
Side View
Table 63.0%Crown 42°Girdle: MED-STKPavilion 28.2°Culet: NoneDepth 66.1%

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 1
Current: $2,550 NZD|Low: $532 NZD|High: $2,563 NZD|Avg: $1,483 NZD|+1.0%
Novita Diamonds
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 1, 2026
Retailer 3$561 NZD
Retailer 6$589 NZD
Retailer 12$905 NZD
Retailer 4$1,013 NZD
Retailer 9$1,027 NZD
Retailer 7$1,099 NZD
Retailer 13$1,219 NZD
Retailer 5$1,371 NZD
Retailer 10$1,794 NZD
Retailer 8$1,914 NZD
Retailer 11$2,092 NZD
Retailer 14$2,397 NZD
Retailer 2$2,497 NZD
Novita Diamonds$2,550 NZD

41 data points across 14 retailers

21 retailers$561 NZD to $2,497 NZD

Retailer 1
-
$468 NZD
$264 USD
Price last confirmed 24 days ago
Retailer 2
-
$468 NZD
$264 USD
View
Price last confirmed 32 days ago
Retailer 3
-
$543 NZD
$306 USD
View
Price last confirmed 35 days ago
A
Retailer 4
-
$561 NZD
$316 USD
View
Final sale: no returns
Retailer 5
-
$573 NZD
$323 USD
View
Price last confirmed 33 days ago
Retailer 6
-
$580 NZD
$327 USD
View
Price last confirmed 24 days ago
Retailer 7
-
$580 NZD
$327 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$589 NZD
$332 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$905 NZD
$510 USD
View
A
Retailer 10
-
$1,013 NZD
ZAR 9,226 ZAR
View
A
Retailer 11
-
$1,027 NZD
$579 USD
View
A
Retailer 12
-
$1,099 NZD
£488 GBP
View
A
Retailer 13
-
$1,219 NZD
$687 USD
View
A
Retailer 14
-
$1,371 NZD
A$1,189 AUD
View
A
Retailer 15
-
$1,794 NZD
$1,011 USD
View
Retailer 16
-
$1,863 NZD
$1,050 USD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$1,914 NZD
$1,079 USD
View
B+
Retailer 18
-
$2,092 NZD
$1,179 USD
View
B+
Retailer 19
-
$2,397 NZD
$1,351 USD
View
B+
Retailer 20
-
$2,497 NZD
£1,108 GBP
View
Most Expensive
Novita Diamonds
cert_783630221 · Oct 8
$2,550 NZD
A$2,211 AUD
View
Price last confirmed 24 days ago
20 more retailers have this diamond
Prices start from $561 NZDSave up to $1,936 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
1.51ct Radiant
$561 NZD