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Radiant|Lab Grown|IGI

1.70ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG818641530

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

Certificate IGI LG818641530

Diamond specifications and retailer prices

From $1,029 NZD
$580 USD
As of October 30, 2026
Save $8,109 NZD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,138 NZD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG818641530 or 818641530. Listed at 12 retailers as of October 30, 2026, with prices from $1,029 to $9,138, a $8,109 spread on the same certified stone. Do Amore Diamonds lists it at $9,138. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818641530
Dimensions8.59 × 5.82 × 3.94 mm
L/W Ratio1.48
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
8.59 mm5.82 mm1.70 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818641530
Side View
Table 63.0%Crown 43.1°Girdle: MED-STKPavilion 33.4°Culet: NoneDepth 67.7%

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 30
Current: $9,138 NZD|Low: $1,029 NZD|High: $11,710 NZD|Avg: $4,829 NZD|-15.7%
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
October 31, 2026
Retailer 8$1,029 NZD
Retailer 12$1,152 NZD
Retailer 3$1,535 NZD
Retailer 4$1,893 NZD
Retailer 9$1,962 NZD
Retailer 2$2,256 NZD
Retailer 10$3,165 NZD
Retailer 11$3,703 NZD
Retailer 7$5,579 NZD
Retailer 6$6,707 NZD
Retailer 13$7,150 NZD
Retailer 5$7,582 NZD
Do Amore Diamonds$9,138 NZD

30 data points across 13 retailers

12 retailers$1,029 NZD to $9,138 NZD

A
Cheapest Retailer
-
$1,029 NZD
$580 USD
A
Retailer 2
-
$1,152 NZD
$649 USD
View
A
Retailer 3
-
$1,535 NZD
$865 USD
View
A
Retailer 4
-
$1,893 NZD
$1,067 USD
View
A
Retailer 5
-
$1,962 NZD
$1,106 USD
View
B+
Retailer 6
-
$2,256 NZD
€1,211 EUR
View
B+
Retailer 7
-
$3,165 NZD
$1,784 USD
View
B+
Retailer 8
-
$3,703 NZD
$2,087 USD
View
B
Retailer 9
-
$5,579 NZD
£2,476 GBP
View
B
Retailer 10
-
$6,707 NZD
$3,780 USD
View
B
Retailer 11
-
$7,150 NZD
$4,030 USD
View
Most Expensive
B
Do Amore Diamonds
27-8A72FBFBD · Oct 30
$9,138 NZD
$5,150 USD
View
11 more retailers have this diamond
Prices start from $1,029 NZDSave up to $8,109 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
$1,029 NZD