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Radiant|Lab Grown|IGI

1.70ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818659742

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

Certificate IGI LG818659742

Diamond specifications and retailer prices

From $1,052 NZD
$593 USD
As of October 30, 2026
Save $6,143 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,195 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.7ct lab-grown radiant diamond

This 1.7ct 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 LG818659742 or 818659742. Listed at 22 retailers as of October 28, 2026, with prices from $1,052 to $7,195, a $6,143 spread on the same certified stone. Rare Carat lists it at $7,195. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659742
Dimensions8.20 × 6.12 × 3.97 mm
L/W Ratio1.34
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
8.20 mm6.12 mm1.70 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659742
Side View
Table 66.0%Crown 42.8°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 64.9%

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: $7,195 NZD|Low: $1,052 NZD|High: $9,652 NZD|Avg: $3,341 NZD
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 14$1,052 NZD
Retailer 21$1,178 NZD
Retailer 19$1,221 NZD
Retailer 12$1,304 NZD
Retailer 16$1,383 NZD
Retailer 20$1,535 NZD
Retailer 5$2,001 NZD
Retailer 2$2,022 NZD
Retailer 4$2,128 NZD
Retailer 18$2,241 NZD
Retailer 7$2,392 NZD
Retailer 6$2,942 NZD
Retailer 10$3,428 NZD
Retailer 8$3,786 NZD
Retailer 9$4,218 NZD
Retailer 13$4,274 NZD
Retailer 11$4,437 NZD
Retailer 17$5,690 NZD
Retailer 3$6,219 NZD
Retailer 15$7,044 NZD
Rare Carat$7,195 NZD

26 data points across 21 retailers

22 retailers$1,052 NZD to $7,195 NZD

A
Cheapest Retailer
-
$1,052 NZD
$593 USD
A
Retailer 2
-
$1,178 NZD
$664 USD
View
A
Retailer 3
-
$1,221 NZD
$688 USD
View
Final sale: no returns
Retailer 4
-
$1,301 NZD
$733 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$1,304 NZD
$735 USD
View
A
Retailer 6
-
$1,383 NZD
£614 GBP
View
A
Retailer 7
-
$1,535 NZD
$865 USD
View
A
Retailer 8
-
$2,001 NZD
$1,128 USD
View
A
Retailer 9
-
$2,022 NZD
£897 GBP
View
Retailer 10
-
$2,128 NZD
€1,142 EUR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$2,241 NZD
ZAR 20,400 ZAR
View
B+
Retailer 12
-
$2,392 NZD
$1,348 USD
View
B+
Retailer 13
-
$2,942 NZD
$1,658 USD
View
B+
Retailer 14
-
$3,428 NZD
$1,932 USD
View
B+
Retailer 15
-
$3,786 NZD
£1,680 GBP
View
B+
Retailer 16
-
$4,218 NZD
$2,377 USD
View
B+
Retailer 17
-
$4,274 NZD
$2,409 USD
View
B+
Retailer 18
-
$4,437 NZD
SGD 3,379 SGD
View
B
Retailer 19
-
$5,690 NZD
£2,525 GBP
View
B
Retailer 20
-
$6,219 NZD
$3,505 USD
View
B
Retailer 21
-
$7,044 NZD
$3,970 USD
View
Most Expensive
B
Rare Carat
VL-144984 · Oct 28
$7,195 NZD
$4,055 USD
View
21 more retailers have this diamond
Prices start from $1,052 NZDSave up to $6,143 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
1.70ct Radiant
$1,052 NZD