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Radiant|Lab Grown|IGI

1.70ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG561254694

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

Certificate IGI LG561254694

Diamond specifications and retailer prices

From $181 USD
As of October 27, 2026
Save $1,559 USD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,740 USD at Do Amore Diamonds · As of October 29, 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG561254694 or 561254694. Listed at 10 retailers as of October 27, 2026, with prices from $181 to $1,740, a $1,559 spread on the same certified stone. Do Amore Diamonds lists it at $1,740. 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
F
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG561254694
Dimensions8.33 × 5.86 × 3.98 mm
L/W Ratio1.42
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 mm5.86 mm1.70 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG561254694
Side View
Table 63.0%Crown 42.5°Girdle: MediumPavilion 36.2°Culet: NoneDepth 67.9%

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 27
Current: $1,740 USD|Low: $181 USD|High: $2,190 USD|Avg: $816 USD|-3.9%
Do Amore Diamonds
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
October 29, 2026
Retailer 11$181 USD
Retailer 8$210 USD
Retailer 14$211 USD
Retailer 10$397 USD
Retailer 3$422 USD
Retailer 4$540 USD
Retailer 7$673 USD
Retailer 9$763 USD
Retailer 15$771 USD
Retailer 12$797 USD
Retailer 2$1,166 USD
Retailer 6$1,200 USD
Retailer 13$1,240 USD
Retailer 5$1,410 USD
Do Amore Diamonds$1,740 USD

17 data points across 15 retailers

10 retailers$181 USD to $1,740 USD

A
Cheapest Retailer
-
$181 USD
A
Retailer 2
-
$210 USD
View
B+
Retailer 3
-
$211 USD
View
Final sale: no returns
B+
Retailer 4
-
$397 USD
View
B
Retailer 5
-
$763 USD
View
B
Retailer 6
-
$797 USD
View
B
Retailer 7
-
$1,166 USD
£918 GBP
View
B
Retailer 8
-
$1,240 USD
View
B
Retailer 9
-
$1,410 USD
View
Most Expensive
B
Do Amore Diamonds
27-05C91399C · Oct 29
$1,740 USD
View
9 more retailers have this diamond
Prices start from $181 USDSave up to $1,559 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
$181 USD