CaratHunter
Plans
Radiant|Lab Grown|IGI

1.70ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG825659955

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

Certificate IGI LG825659955

Diamond specifications and retailer prices

From $593 USD
As of October 27, 2026
Save $4,847 USD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,440 USD at Brilliant Earth · As of October 29, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825659955 or 825659955. Listed at 21 retailers as of October 27, 2026, with prices from $593 to $5,440, a $4,847 spread on the same certified stone. Brilliant Earth lists it at $5,440. 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
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659955
Dimensions8.03 × 5.94 × 4.10 mm
L/W Ratio1.35
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
8.03 mm5.94 mm1.70 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659955
Side View
Table 64.0%Crown 45.9°Girdle: MediumPavilion 35.6°Culet: NoneDepth 69.0%

Caratlytics Score

How it works →
A+
Exceptional
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 27
Current: $5,440 USD|Low: $593 USD|High: $5,620 USD|Avg: $2,009 USD|-3.2%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 29, 2026
Retailer 11$593 USD
Retailer 17$664 USD
Retailer 20$688 USD
Retailer 10$735 USD
Retailer 15$865 USD
Retailer 3$1,128 USD
Retailer 2$1,145 USD
Retailer 19$1,199 USD
Retailer 14$1,263 USD
Retailer 5$1,348 USD
Retailer 4$1,658 USD
Retailer 8$1,932 USD
Retailer 6$2,134 USD
Retailer 16$2,345 USD
Retailer 7$2,377 USD
Retailer 9$2,500 USD
Retailer 13$3,207 USD
Retailer 18$3,505 USD
Retailer 12$4,055 USD
Brilliant Earth$5,440 USD

30 data points across 20 retailers

21 retailers$593 USD to $5,440 USD

A+
Cheapest Retailer
-
$593 USD
A
Retailer 2
-
$664 USD
View
A
Retailer 3
-
$688 USD
View
Final sale: no returns
Retailer 4
-
$733 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$735 USD
View
A
Retailer 6
-
$865 USD
View
A
Retailer 7
-
$1,128 USD
View
A
Retailer 8
-
$1,145 USD
£902 GBP
View
A
Retailer 9
-
$1,199 USD
€1,142 EUR
View
B+
Retailer 10
-
$1,263 USD
ZAR 20,400 ZAR
View
B+
Retailer 11
-
$1,348 USD
View
B+
Retailer 12
-
$1,658 USD
View
B+
Retailer 13
-
$1,932 USD
View
B+
Retailer 14
-
$2,134 USD
£1,680 GBP
View
B+
Retailer 15
-
$2,345 USD
View
B+
Retailer 16
-
$2,377 USD
View
B+
Retailer 17
-
$2,500 USD
SGD 3,379 SGD
View
B
Retailer 18
-
$3,207 USD
£2,525 GBP
View
B
Retailer 19
-
$3,505 USD
View
B
Retailer 20
-
$4,055 USD
View
Most Expensive
B
Brilliant Earth
21418659A · Oct 29
$5,440 USD
View
20 more retailers have this diamond
Prices start from $593 USDSave up to $4,847 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
$593 USD