Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

E/IF • IGI LG799649696

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

Certificate IGI LG799649696

Diamond specifications and retailer prices

From $478 NZD
$269 USD
As of October 30, 2026
Save $2,952 NZD (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,430 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI LG799649696 or 799649696. Listed at 25 retailers as of October 30, 2026, with prices from $478 to $3,430, a $2,952 spread on the same certified stone. Brilliant Earth lists it at $3,430. 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

1.21
Carat
E
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799649696
Dimensions7.55 × 5.30 × 3.42 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.55 mm5.30 mm1.21 ctE / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799649696
Side View
Table 65.0%Crown 42.7°Girdle: Slightly ThickPavilion 35°Culet: NoneDepth 64.5%

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 30
Current: $3,430 NZD|Low: $459 NZD|High: $3,430 NZD|Avg: $1,339 NZD|+0.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 3$478 NZD
Retailer 4$594 NZD
Retailer 6$627 NZD
Retailer 11$880 NZD
Retailer 5$983 NZD
Retailer 10$1,019 NZD
Retailer 8$1,060 NZD
Retailer 7$1,138 NZD
Retailer 9$1,443 NZD
Retailer 13$1,505 NZD
Retailer 2$2,377 NZD
Retailer 12$2,639 NZD
Brilliant Earth$3,430 NZD

34 data points across 13 retailers

25 retailers$478 NZD to $3,430 NZD

A
Cheapest Retailer
-
$478 NZD
$269 USD
A
Retailer 2
-
$535 NZD
$301 USD
View
Final sale: no returns
A
Retailer 3
-
$555 NZD
$312 USD
View
Retailer 4
-
$594 NZD
$334 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$594 NZD
$334 USD
View
A
Retailer 6
-
$627 NZD
£278 GBP
View
A
Retailer 7
-
$880 NZD
$495 USD
View
B+
Retailer 8
-
$983 NZD
$553 USD
View
A
Retailer 9
-
$1,019 NZD
ZAR 9,263 ZAR
View
B+
Retailer 10
-
$1,038 NZD
$584 USD
View
B+
Retailer 11
-
$1,060 NZD
€568 EUR
View
B+
Retailer 12
-
$1,138 NZD
£504 GBP
View
Retailer 13
-
$1,305 NZD
A$1,130 AUD
View
Price last confirmed 123 days ago
B+
Retailer 14
-
$1,408 NZD
$792 USD
View
B+
Retailer 15
-
$1,443 NZD
A$1,249 AUD
View
B
Retailer 16
-
$1,505 NZD
$847 USD
View
B
Retailer 17
-
$1,907 NZD
$1,073 USD
View
B
Retailer 18
-
$1,997 NZD
$1,124 USD
View
B
Retailer 19
-
$2,270 NZD
$1,277 USD
View
B
Retailer 20
-
$2,302 NZD
£1,020 GBP
View
B
Retailer 21
-
$2,377 NZD
£1,053 GBP
View
B
Retailer 22
-
$2,513 NZD
$1,414 USD
View
Retailer 23
-
$2,639 NZD
$1,485 USD
View
Price last confirmed 12 days ago
Retailer 24
-
$2,644 NZD
$1,488 USD
View
Price last confirmed 63 days ago
Most Expensive
B
Brilliant Earth
20005272A · Oct 31
$3,430 NZD
$1,930 USD
View
24 more retailers have this diamond
Prices start from $478 NZDSave up to $2,952 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
1.21ct Radiant
$478 NZD