CaratHunter
Plans
Radiant|Lab Grown|IGI

1.70ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG617427460

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

Certificate IGI LG617427460

Diamond specifications and retailer prices

From $180 USD
As of November 2, 2026
Save $1,060 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,240 USD at Brilliant Earth · As of October 31, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617427460 or 617427460. Listed at 14 retailers as of October 31, 2026, with prices from $180 to $1,240, a $1,060 spread on the same certified stone. Brilliant Earth lists it at $1,240. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.70
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617427460
Dimensions8.33 × 5.89 × 4.02 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.33 mm5.89 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617427460
Side View
Table 65.0%Crown 43.1°Girdle: MediumPavilion 35.9°Culet: NoneDepth 68.3%

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: Nov 2
Current: $1,240 USD|Low: $180 USD|High: $1,420 USD|Avg: $544 USD|-12.7%
Brilliant Earth
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
November 2, 2026
Retailer 12$180 USD
Retailer 9$209 USD
Retailer 4$223 USD
Retailer 5$223 USD
Retailer 11$287 USD
Retailer 3$395 USD
Retailer 7$400 USD
Retailer 2$402 USD
Retailer 10$556 USD
Retailer 14$565 USD
Retailer 13$717 USD
Retailer 6$757 USD
Retailer 8$1,049 USD
Brilliant Earth$1,240 USD

38 data points across 14 retailers

14 retailers$180 USD to $1,240 USD

A
Cheapest Retailer
-
$180 USD
A
Retailer 2
-
$209 USD
View
A
Retailer 3
-
$223 USD
View
Retailer 4
-
$223 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$395 USD
View
A
Retailer 6
-
$400 USD
€381 EUR
View
A
Retailer 7
-
$402 USD
£316 GBP
View
A
Retailer 8
-
$556 USD
View
A
Retailer 9
-
$565 USD
View
B+
Retailer 10
-
$717 USD
View
B+
Retailer 11
-
$757 USD
View
B+
Retailer 12
-
$765 USD
£602 GBP
View
B+
Retailer 13
-
$1,049 USD
£826 GBP
View
Most Expensive
B
Brilliant Earth
9016409A · Oct 31
$1,240 USD
View
13 more retailers have this diamond
Prices start from $180 USDSave up to $1,060 USD

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
$180 USD