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Radiant|Lab Grown|IGI

1.71ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG604379287

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

Certificate IGI LG604379287

Diamond specifications and retailer prices

From $1,508 NZD
£668 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $1,508 NZD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

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 top-tier cut grade and certified by IGI LG604379287 or 604379287. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.71
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604379287
Dimensions8.51 × 5.91 × 3.80 mm
L/W Ratio1.44
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
8.51 mm5.91 mm1.71 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604379287
Side View
Table 63.0%Crown 40.4°Girdle: Slightly ThickPavilion 34.4°Culet: NoneDepth 64.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $268 NZD|Low: $256 NZD|High: $2,131 NZD|Avg: $1,175 NZD
Retailer 1
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Retailer 11
June 13, 2026
Retailer 6$256 NZD
Retailer 1$268 NZD
Retailer 7$638 NZD
Retailer 4$719 NZD
Retailer 10$965 NZD
Retailer 2$1,034 NZD
Retailer 9$1,121 NZD
Retailer 3$1,375 NZD
Retailer 11$1,722 NZD
Retailer 5$2,011 NZD
Retailer 8$2,109 NZD

58 data points across 11 retailers

1 retailer

B
Diamond Quarter
1.71SI1FLG87FF2DN · Nov 2
$1,508 NZD
£668 GBP
View

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.

B
1.71ct Radiant
$1,508 NZD