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Radiant|Lab Grown|IGI

1.79ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG612339021

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

Certificate IGI LG612339021

Diamond specifications and retailer prices

From $336 NZD
$189 USD
As of October 27, 2026
Save $2,899 NZD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,235 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.79ct lab-grown radiant diamond

This 1.79ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG612339021 or 612339021. Listed at 12 retailers as of October 27, 2026, with prices from $336 to $3,235, a $2,899 spread on the same certified stone. Do Amore Diamonds lists it at $3,235. 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

1.79
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG612339021
Dimensions8.59 × 5.93 × 4.06 mm
L/W Ratio1.45
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
8.59 mm5.93 mm1.79 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG612339021
Side View
Table 65.0%Crown 41.9°Girdle: MediumPavilion 35.3°Culet: NoneDepth 68.5%

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: $3,235 NZD|Low: $336 NZD|High: $3,359 NZD|Avg: $1,430 NZD|-3.7%
Do Amore 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
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 13$336 NZD
Retailer 3$391 NZD
Retailer 11$391 NZD
Retailer 10$593 NZD
Retailer 7$651 NZD
Retailer 15$734 NZD
Retailer 6$985 NZD
Retailer 9$1,250 NZD
Retailer 12$1,347 NZD
Retailer 14$1,480 NZD
Retailer 5$1,511 NZD
Retailer 2$1,855 NZD
Retailer 17$1,935 NZD
Retailer 8$2,138 NZD
Retailer 16$2,310 NZD
Retailer 4$2,630 NZD
Do Amore Diamonds$3,235 NZD

24 data points across 17 retailers

12 retailers$336 NZD to $3,235 NZD

A
Cheapest Retailer
-
$336 NZD
$189 USD
A
Retailer 2
-
$391 NZD
$220 USD
View
B+
Retailer 3
-
$391 NZD
$220 USD
View
Final sale: no returns
A
Retailer 4
-
$593 NZD
£263 GBP
View
B+
Retailer 5
-
$734 NZD
$413 USD
View
Retailer 6
-
$1,347 NZD
$758 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$1,480 NZD
$833 USD
View
B
Retailer 8
-
$1,855 NZD
£822 GBP
View
B
Retailer 9
-
$1,935 NZD
$1,089 USD
View
B
Retailer 10
-
$2,310 NZD
$1,300 USD
View
B
Retailer 11
-
$2,630 NZD
$1,480 USD
View
Most Expensive
B
Do Amore Diamonds
27-B24787836 · Oct 29
$3,235 NZD
$1,820 USD
View
11 more retailers have this diamond
Prices start from $336 NZDSave up to $2,899 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
1.79ct Radiant
$336 NZD