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Radiant|Lab Grown|IGI

1.71ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG611390075

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

Certificate IGI LG611390075

Diamond specifications and retailer prices

From $323 NZD
$182 USD
As of October 27, 2026
Save $2,782 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,105 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.71ct lab-grown radiant diamond

This 1.71ct 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 LG611390075 or 611390075. Listed at 10 retailers as of October 27, 2026, with prices from $323 to $3,105, a $2,782 spread on the same certified stone. Do Amore Diamonds lists it at $3,105. 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

1.71
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG611390075
Dimensions8.50 × 5.87 × 3.95 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
8.50 mm5.87 mm1.71 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG611390075
Side View
Table 64.0%Crown 43.4°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 67.3%

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: $3,105 NZD|Low: $259 NZD|High: $3,229 NZD|Avg: $1,437 NZD|-3.8%
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
October 29, 2026
Retailer 11$323 NZD
Retailer 8$374 NZD
Retailer 14$376 NZD
Retailer 10$708 NZD
Retailer 3$754 NZD
Retailer 4$960 NZD
Retailer 7$1,201 NZD
Retailer 9$1,361 NZD
Retailer 15$1,382 NZD
Retailer 12$1,421 NZD
Retailer 2$2,078 NZD
Retailer 6$2,129 NZD
Retailer 13$2,218 NZD
Retailer 5$2,520 NZD
Do Amore Diamonds$3,105 NZD

20 data points across 15 retailers

10 retailers$323 NZD to $3,105 NZD

A
Cheapest Retailer
-
$323 NZD
$182 USD
A
Retailer 2
-
$374 NZD
$211 USD
View
B+
Retailer 3
-
$376 NZD
$212 USD
View
Final sale: no returns
B+
Retailer 4
-
$708 NZD
$399 USD
View
Retailer 5
-
$1,361 NZD
$767 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$1,421 NZD
$801 USD
View
B
Retailer 7
-
$2,078 NZD
£922 GBP
View
Retailer 8
-
$2,218 NZD
$1,250 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
$2,520 NZD
$1,420 USD
View
Most Expensive
B
Do Amore Diamonds
27-45AE36F9B · Oct 29
$3,105 NZD
$1,750 USD
View
9 more retailers have this diamond
Prices start from $323 NZDSave up to $2,782 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
1.71ct Radiant
$323 NZD