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Radiant|Lab Grown|IGI

1.70ct D IF Radiant Lab Grown Diamond

GD • D/IF • IGI LG729529458

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

Certificate IGI LG729529458

Diamond specifications and retailer prices

From €745 EUR
$832 USD
As of October 30, 2026
Save €2,854 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,598 EUR 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG729529458 or 729529458. Listed at 11 retailers as of October 30, 2026, with prices from €745 to €3,598, a €2,854 spread on the same certified stone. Brilliant Earth lists it at €3,598. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.2°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729529458
Dimensions8.44 × 5.89 × 3.88 mm
L/W Ratio1.43
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
8.44 mm5.89 mm1.70 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729529458
Side View
Table 67.0%Crown 46.2°Girdle: MediumPavilion 34.7°Culet: NoneDepth 65.9%

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: €3,598 EUR|Low: €725 EUR|High: €4,019 EUR|Avg: €1,764 EUR|-10.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8€745 EUR
Retailer 10€761 EUR
Retailer 2€810 EUR
Retailer 5€924 EUR
Retailer 11€1,178 EUR
Retailer 4€1,773 EUR
Retailer 3€1,808 EUR
Retailer 6€2,330 EUR
Retailer 9€2,426 EUR
Retailer 7€2,824 EUR
Brilliant Earth€3,598 EUR

42 data points across 11 retailers

11 retailers€745 EUR to €3,598 EUR

A
Cheapest Retailer
-
€745 EUR
$832 USD
A
Retailer 2
-
€761 EUR
$850 USD
View
A
Retailer 3
-
€810 EUR
View
B+
Retailer 4
-
€924 EUR
£813 GBP
View
B+
Retailer 5
-
€1,178 EUR
$1,316 USD
View
B
Retailer 6
-
€1,773 EUR
A$3,047 AUD
View
B
Retailer 7
-
€1,808 EUR
$2,020 USD
View
B
Retailer 8
-
€2,330 EUR
£2,050 GBP
View
B
Retailer 9
-
€2,426 EUR
$2,710 USD
View
Retailer 10
-
€2,824 EUR
$3,155 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
16081761A · Oct 30
€3,598 EUR
$4,020 USD
View
10 more retailers have this diamond
Prices start from €745 EURSave up to €2,854 EUR

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
€745 EUR