Radiant|Lab Grown|IGI

1.70ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG623464285

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

Certificate IGI LG623464285

Diamond specifications and retailer prices

From $346 USD
As of October 27, 2026
Save $1,334 USD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,100 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 very-good cut grade and certified by IGI LG623464285 or 623464285. Listed at 20 retailers as of October 25, 2026, with a 386% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623464285
Dimensions8.49 × 5.82 × 4.03 mm
L/W Ratio1.46
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
8.49 mm5.82 mm1.70 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623464285
Side View
Table 64.0%Crown 42.7°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 69.2%

Caratlytics Score

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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: $3,100 USD|Low: $346 USD|High: $3,180 USD|Avg: $1,050 USD|-2.5%
Rare Carat
Retailer 2
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Retailer 12
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Retailer 19
Retailer 20
October 30, 2026
Retailer 9$346 USD
Retailer 7$386 USD
Retailer 17$402 USD
Retailer 4$429 USD
Retailer 8$429 USD
Retailer 15$580 USD
Retailer 3$691 USD
Retailer 6$692 USD
Retailer 19$717 USD
Retailer 14$738 USD
Retailer 2$771 USD
Retailer 13$996 USD
Retailer 18$1,069 USD
Retailer 20$1,263 USD
Retailer 11$1,380 USD
Retailer 12$1,422 USD
Retailer 10$1,622 USD
Retailer 5$1,660 USD
Retailer 16$1,680 USD
Rare Carat$3,100 USD

35 data points across 20 retailers

20 retailers$346 USD to $1,680 USD

A
Cheapest Retailer
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$346 USD
A
Retailer 2
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$386 USD
View
Final sale: no returns
A
Retailer 3
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$402 USD
View
A
Retailer 4
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$429 USD
View
A
Retailer 5
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$429 USD
View
A
Retailer 6
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$580 USD
View
A
Retailer 7
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$691 USD
View
A
Retailer 8
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$692 USD
View
A
Retailer 9
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$717 USD
€683 EUR
View
A
Retailer 10
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$738 USD
ZAR 11,918 ZAR
View
A
Retailer 11
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$771 USD
£607 GBP
View
A
Retailer 12
-
$996 USD
A$1,533 AUD
View
A
Retailer 13
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$1,069 USD
View
B+
Retailer 14
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$1,263 USD
View
B+
Retailer 15
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$1,380 USD
View
B+
Retailer 16
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$1,422 USD
View
B+
Retailer 17
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$1,622 USD
View
B+
Retailer 18
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$1,660 USD
View
B+
Retailer 19
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$1,680 USD
£1,323 GBP
View
Most Expensive
Rare Carat
165-13_l_623464285 · Oct 18
$3,100 USD
View
Price last confirmed 11 days ago
19 more retailers have this diamond
Prices start from $346 USDSave up to $1,334 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
$346 USD