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Radiant|Lab Grown|IGI

3.17ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG728561176

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

Certificate IGI LG728561176

Diamond specifications and retailer prices

From $1,414 AUD
$993 USD
As of October 30, 2026
Save $11,143 AUD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,556 AUD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.17ct lab-grown radiant diamond

This 3.17ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728561176 or 728561176. Listed at 18 retailers as of October 30, 2026, with prices from $1,414 to $12,556, a $11,143 spread on the same certified stone. Do Amore Diamonds lists it at $12,556. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.17
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728561176
Dimensions10.25 × 7.18 × 4.84 mm
L/W Ratio1.43
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
10.25 mm7.18 mm3.17 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728561176
Side View
Table 66.0%Crown 44.3°Girdle: Slightly ThickPavilion 33.3°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A+
Exceptional
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: $12,556 AUD|Low: $1,414 AUD|High: $15,161 AUD|Avg: $5,036 AUD|-17.2%
Do Amore Diamonds
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
October 31, 2026
Retailer 11$1,414 AUD
Retailer 17$1,569 AUD
Retailer 6$1,886 AUD
Retailer 10$1,896 AUD
Retailer 9$1,984 AUD
Retailer 15$2,669 AUD
Retailer 5$3,006 AUD
Retailer 14$3,392 AUD
Retailer 12$3,457 AUD
Retailer 2$3,533 AUD
Retailer 3$4,254 AUD
Retailer 13$4,679 AUD
Retailer 16$5,941 AUD
Retailer 4$7,823 AUD
Retailer 7$10,057 AUD
Retailer 8$12,257 AUD
Do Amore Diamonds$12,556 AUD

33 data points across 17 retailers

18 retailers$1,414 AUD to $12,556 AUD

A+
Cheapest Retailer
-
$1,414 AUD
$993 USD
A
Retailer 2
-
$1,569 AUD
$1,102 USD
View
A
Retailer 3
-
$1,886 AUD
$1,325 USD
View
A
Retailer 4
-
$1,896 AUD
$1,332 USD
View
A
Retailer 5
-
$1,984 AUD
$1,394 USD
View
Final sale: no returns
A
Retailer 6
-
$2,669 AUD
$1,875 USD
View
Retailer 7
-
$3,006 AUD
€2,011 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$3,392 AUD
$2,383 USD
View
A
Retailer 9
-
$3,457 AUD
$2,428 USD
View
A
Retailer 10
-
$3,533 AUD
$2,482 USD
View
Retailer 11
-
$4,254 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$4,679 AUD
$3,287 USD
View
B+
Retailer 13
-
$5,941 AUD
£3,286 GBP
View
Retailer 14
-
$7,823 AUD
$5,495 USD
View
Price last confirmed 12 days ago
Retailer 15
-
$10,057 AUD
View
Price last confirmed 22 days ago
Retailer 16
-
$10,316 AUD
$7,247 USD
View
B
Retailer 17
-
$12,257 AUD
$8,610 USD
View
Most Expensive
B
Do Amore Diamonds
27-A3CD23EF5 · Oct 30
$12,556 AUD
$8,820 USD
View
17 more retailers have this diamond
Prices start from $1,414 AUDSave up to $11,143 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+
3.17ct Radiant
$1,414 AUD