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Radiant|Lab Grown|IGI

1.71ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818654290

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

Certificate IGI LG818654290

Diamond specifications and retailer prices

From $1,057 NZD
$596 USD
As of October 30, 2026
Save $6,182 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,239 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654290 or 818654290. Listed at 22 retailers as of October 28, 2026, with prices from $1,057 to $7,239, a $6,182 spread on the same certified stone. Rare Carat lists it at $7,239. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654290
Dimensions8.08 × 5.93 × 4.08 mm
L/W Ratio1.36
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.08 mm5.93 mm1.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654290
Side View
Table 63.0%Crown 42.2°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 68.8%

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 30
Current: $7,239 NZD|Low: $1,057 NZD|High: $9,723 NZD|Avg: $3,360 NZD|-1.1%
Rare Carat
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 12$1,057 NZD
Retailer 20$1,183 NZD
Retailer 8$1,228 NZD
Retailer 11$1,311 NZD
Retailer 19$1,544 NZD
Retailer 3$1,698 NZD
Retailer 4$2,014 NZD
Retailer 13$2,034 NZD
Retailer 2$2,144 NZD
Retailer 18$2,253 NZD
Retailer 6$2,418 NZD
Retailer 5$2,841 NZD
Retailer 9$3,447 NZD
Retailer 7$3,813 NZD
Retailer 14$4,241 NZD
Retailer 15$4,301 NZD
Retailer 10$4,458 NZD
Retailer 21$4,691 NZD
Retailer 17$5,721 NZD
Retailer 16$7,079 NZD
Rare Carat$7,239 NZD

30 data points across 21 retailers

22 retailers$1,057 NZD to $7,239 NZD

A
Cheapest Retailer
-
$1,057 NZD
$596 USD
A
Retailer 2
-
$1,183 NZD
$667 USD
View
A
Retailer 3
-
$1,228 NZD
$692 USD
View
Final sale: no returns
Retailer 4
-
$1,309 NZD
$738 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$1,311 NZD
$739 USD
View
A
Retailer 6
-
$1,544 NZD
$870 USD
View
A
Retailer 7
-
$1,698 NZD
$957 USD
View
A
Retailer 8
-
$2,014 NZD
$1,135 USD
View
A
Retailer 9
-
$2,034 NZD
£902 GBP
View
Retailer 10
-
$2,144 NZD
€1,151 EUR
View
B+
Retailer 11
-
$2,253 NZD
ZAR 20,514 ZAR
View
B+
Retailer 12
-
$2,418 NZD
$1,363 USD
View
B+
Retailer 13
-
$2,841 NZD
$1,601 USD
View
B+
Retailer 14
-
$3,447 NZD
$1,943 USD
View
B+
Retailer 15
-
$3,813 NZD
£1,692 GBP
View
B+
Retailer 16
-
$4,241 NZD
$2,390 USD
View
B+
Retailer 17
-
$4,301 NZD
$2,424 USD
View
B+
Retailer 18
-
$4,458 NZD
SGD 3,395 SGD
View
B
Retailer 19
-
$4,691 NZD
$2,644 USD
View
B
Retailer 20
-
$5,721 NZD
£2,539 GBP
View
B
Retailer 21
-
$7,079 NZD
$3,990 USD
View
Most Expensive
B
Rare Carat
PD-237885 · Oct 28
$7,239 NZD
$4,080 USD
View
21 more retailers have this diamond
Prices start from $1,057 NZDSave up to $6,182 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
$1,057 NZD