Radiant|Lab Grown|IGI

1.70ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG726542816

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

Certificate IGI LG726542816

Diamond specifications and retailer prices

From $556 NZD
$312 USD
As of October 30, 2026
Save $5,000 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,555 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG726542816 or 726542816. Listed at 10 retailers as of October 30, 2026, with prices from $556 to $5,555, a $5,000 spread on the same certified stone. Brilliant Earth lists it at $5,555. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG726542816
Dimensions8.46 × 5.96 × 3.91 mm
L/W Ratio1.42
Culet sizePointed
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
8.46 mm5.96 mm1.70 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG726542816
Side View
Table 64.0%Crown 42.6°Girdle: MED-STKPavilion 34.5°Culet: NoneDepth 65.6%

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: $5,555 NZD|Low: $556 NZD|High: $6,107 NZD|Avg: $2,405 NZD|-9.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6$556 NZD
Retailer 4$935 NZD
Retailer 5$995 NZD
Retailer 2$1,088 NZD
Retailer 7$1,988 NZD
Retailer 8$2,169 NZD
Retailer 3$2,487 NZD
Retailer 9$4,745 NZD
Brilliant Earth$5,555 NZD

43 data points across 9 retailers

10 retailers$556 NZD to $5,555 NZD

A
Cheapest Retailer
-
$556 NZD
$312 USD
Final sale: no returns
A
Retailer 2
-
$935 NZD
$525 USD
View
Retailer 3
-
$995 NZD
€532 EUR
View
Price last confirmed 7 days ago
A
Retailer 4
-
$1,088 NZD
£481 GBP
View
A
Retailer 5
-
$1,988 NZD
SGD 1,509 SGD
View
B+
Retailer 6
-
$2,169 NZD
$1,218 USD
View
B+
Retailer 7
-
$2,286 NZD
$1,284 USD
View
B+
Retailer 8
-
$2,487 NZD
£1,100 GBP
View
Retailer 9
-
$4,745 NZD
$2,665 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
15975265A · Oct 30
$5,555 NZD
$3,120 USD
View
9 more retailers have this diamond
Prices start from $556 NZDSave up to $5,000 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
$556 NZD