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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 $1,013 USD
As of October 27, 2026
Save $7,987 USD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,000 USD at Do Amore Diamonds · As of October 28, 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 27, 2026, with prices from $1,013 to $9,000, a $7,987 spread on the same certified stone. Do Amore Diamonds lists it at $9,000. 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
Color
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 27
Current: $9,000 USD|Low: $996 USD|High: $10,650 USD|Avg: $3,748 USD|-15.5%
Do Amore Diamonds
Retailer 2
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 29, 2026
Retailer 11$1,013 USD
Retailer 16$1,102 USD
Retailer 5$1,325 USD
Retailer 13$1,354 USD
Retailer 9$1,394 USD
Retailer 12$1,875 USD
Retailer 4$2,112 USD
Retailer 10$2,383 USD
Retailer 7$2,433 USD
Retailer 14$2,456 USD
Retailer 17$2,988 USD
Retailer 2$3,287 USD
Retailer 15$4,173 USD
Retailer 3$5,495 USD
Retailer 6$7,064 USD
Retailer 8$8,610 USD
Do Amore Diamonds$9,000 USD

30 data points across 17 retailers

18 retailers$1,013 USD to $9,000 USD

A+
Cheapest Retailer
-
$1,013 USD
A
Retailer 2
-
$1,102 USD
View
A
Retailer 3
-
$1,325 USD
View
A
Retailer 4
-
$1,354 USD
View
A
Retailer 5
-
$1,394 USD
View
Final sale: no returns
A
Retailer 6
-
$1,875 USD
View
A
Retailer 7
-
$2,112 USD
€2,011 EUR
View
A
Retailer 8
-
$2,383 USD
View
A
Retailer 9
-
$2,433 USD
View
A
Retailer 10
-
$2,456 USD
View
A
Retailer 11
-
$2,988 USD
A$4,597 AUD
View
Price last confirmed 7 days ago
A
Retailer 12
-
$3,287 USD
View
B+
Retailer 13
-
$4,173 USD
£3,286 GBP
View
B+
Retailer 14
-
$5,495 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$7,064 USD
A$10,868 AUD
View
Price last confirmed 20 days ago
B
Retailer 16
-
$7,247 USD
View
B
Retailer 17
-
$8,610 USD
View
Most Expensive
B
Do Amore Diamonds
27-A3CD23EF5 · Oct 28
$9,000 USD
View
17 more retailers have this diamond
Prices start from $1,013 USDSave up to $7,987 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+
3.17ct Radiant
$1,013 USD