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Radiant|Lab Grown|IGI

1.72ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG627408379

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

Certificate IGI LG627408379

Diamond specifications and retailer prices

From $325 NZD
$183 USD
As of October 27, 2026
Save $2,798 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,123 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.72ct lab-grown radiant diamond

This 1.72ct 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 top-tier cut grade and certified by IGI LG627408379 or 627408379. Listed at 10 retailers as of October 27, 2026, with prices from $325 to $3,123, a $2,798 spread on the same certified stone. Do Amore Diamonds lists it at $3,123. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.72
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627408379
Dimensions8.67 × 5.83 × 3.93 mm
L/W Ratio1.49
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
8.67 mm5.83 mm1.72 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627408379
Side View
Table 66.0%Crown 44.4°Girdle: MediumPavilion 35.5°Culet: NoneDepth 67.4%

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: $3,123 NZD|Low: $259 NZD|High: $3,229 NZD|Avg: $1,443 NZD|-3.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6$325 NZD
Retailer 3$376 NZD
Retailer 10$378 NZD
Retailer 5$708 NZD
Retailer 4$1,368 NZD
Retailer 8$1,418 NZD
Retailer 7$1,428 NZD
Retailer 2$2,089 NZD
Retailer 9$2,253 NZD
Do Amore Diamonds$3,123 NZD

23 data points across 10 retailers

10 retailers$325 NZD to $3,123 NZD

A
Cheapest Retailer
-
$325 NZD
$183 USD
A
Retailer 2
-
$376 NZD
$212 USD
View
A
Retailer 3
-
$378 NZD
$213 USD
View
Final sale: no returns
B+
Retailer 4
-
$708 NZD
$399 USD
View
Retailer 5
-
$1,368 NZD
$771 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$1,418 NZD
$799 USD
View
B+
Retailer 7
-
$1,428 NZD
$805 USD
View
B
Retailer 8
-
$2,089 NZD
£927 GBP
View
B
Retailer 9
-
$2,253 NZD
$1,270 USD
View
Most Expensive
B
Do Amore Diamonds
27-9FA26D7BD · Oct 29
$3,123 NZD
$1,760 USD
View
9 more retailers have this diamond
Prices start from $325 NZDSave up to $2,798 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
1.72ct Radiant
$325 NZD