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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 $493 AUD
$346 USD
As of October 30, 2026
Save $1,899 AUD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,413 AUD 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
Colour
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 30
Current: $4,413 AUD|Low: $493 AUD|High: $4,527 AUD|Avg: $1,495 AUD|-2.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 17
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Retailer 20
October 30, 2026
Retailer 9$493 AUD
Retailer 7$550 AUD
Retailer 17$572 AUD
Retailer 4$611 AUD
Retailer 8$611 AUD
Retailer 15$826 AUD
Retailer 3$984 AUD
Retailer 6$985 AUD
Retailer 19$1,021 AUD
Retailer 14$1,050 AUD
Retailer 2$1,098 AUD
Retailer 13$1,419 AUD
Retailer 18$1,522 AUD
Retailer 20$1,798 AUD
Retailer 11$1,965 AUD
Retailer 12$2,025 AUD
Retailer 10$2,309 AUD
Retailer 5$2,363 AUD
Retailer 16$2,392 AUD
Rare Carat$4,413 AUD

35 data points across 20 retailers

20 retailers$493 AUD to $2,392 AUD

A
Cheapest Retailer
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$493 AUD
$346 USD
A
Retailer 2
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$550 AUD
$386 USD
View
Final sale: no returns
A
Retailer 3
-
$572 AUD
$402 USD
View
A
Retailer 4
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$611 AUD
$429 USD
View
A
Retailer 5
-
$611 AUD
$429 USD
View
A
Retailer 6
-
$826 AUD
$580 USD
View
A
Retailer 7
-
$984 AUD
$691 USD
View
A
Retailer 8
-
$985 AUD
$692 USD
View
Retailer 9
-
$1,021 AUD
€683 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
-
$1,050 AUD
ZAR 11,918 ZAR
View
A
Retailer 11
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$1,098 AUD
£607 GBP
View
A
Retailer 12
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$1,419 AUD
View
A
Retailer 13
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$1,522 AUD
$1,069 USD
View
B+
Retailer 14
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$1,798 AUD
$1,263 USD
View
B+
Retailer 15
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$1,965 AUD
$1,380 USD
View
B+
Retailer 16
-
$2,025 AUD
$1,422 USD
View
B+
Retailer 17
-
$2,309 AUD
$1,622 USD
View
B+
Retailer 18
-
$2,363 AUD
$1,660 USD
View
B+
Retailer 19
-
$2,392 AUD
£1,323 GBP
View
Most Expensive
Rare Carat
165-13_l_623464285 · Oct 18
$4,413 AUD
$3,100 USD
View
Price last confirmed 12 days ago
19 more retailers have this diamond
Prices start from $493 AUDSave up to $1,899 AUD

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
$493 AUD