Radiant|Lab Grown|IGI

3.15ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG735564606

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

Certificate IGI LG735564606

Diamond specifications and retailer prices

From $987 USD
As of October 30, 2026
Save $7,773 USD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,760 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.15ct lab-grown radiant diamond

This 3.15ct 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 LG735564606 or 735564606. Listed at 17 retailers as of October 30, 2026, with prices from $987 to $8,760, a $7,773 spread on the same certified stone. Do Amore Diamonds lists it at $8,760. 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

3.15
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735564606
Dimensions10.12 × 7.18 × 5.02 mm
L/W Ratio1.41
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
10.12 mm7.18 mm3.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735564606
Side View
Table 65.0%Crown 43.5°Girdle: Slightly ThickPavilion 35.7°Culet: NoneDepth 69.9%

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: $8,760 USD|Low: $987 USD|High: $10,580 USD|Avg: $3,516 USD|-17.2%
Do Amore Diamonds
Retailer 2
Retailer 3
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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 30, 2026
Retailer 2$987 USD
Retailer 3$1,095 USD
Retailer 11$1,320 USD
Retailer 16$1,346 USD
Retailer 9$1,386 USD
Retailer 15$1,864 USD
Retailer 4$2,099 USD
Retailer 14$2,368 USD
Retailer 10$2,399 USD
Retailer 17$2,441 USD
Retailer 5$2,970 USD
Retailer 13$3,268 USD
Retailer 12$4,308 USD
Retailer 6$5,460 USD
Retailer 7$7,036 USD
Retailer 8$8,560 USD
Do Amore Diamonds$8,760 USD

35 data points across 17 retailers

17 retailers$987 USD to $8,760 USD

A+
Cheapest Retailer
-
$987 USD
A
Retailer 2
-
$1,095 USD
View
A
Retailer 3
-
$1,320 USD
View
A
Retailer 4
-
$1,346 USD
View
A
Retailer 5
-
$1,386 USD
View
Final sale: no returns
A
Retailer 6
-
$1,864 USD
View
Retailer 7
-
$2,099 USD
€1,999 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$2,368 USD
View
A
Retailer 9
-
$2,399 USD
View
A
Retailer 10
-
$2,441 USD
View
Retailer 11
-
$2,970 USD
A$4,569 AUD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$3,268 USD
View
B+
Retailer 13
-
$4,308 USD
£3,392 GBP
View
Retailer 14
-
$5,460 USD
View
Price last confirmed 11 days ago
Retailer 15
-
$7,036 USD
A$10,824 AUD
View
Price last confirmed 25 days ago
B
Retailer 16
-
$8,560 USD
View
Most Expensive
B
Do Amore Diamonds
27-646207296 · Oct 30
$8,760 USD
View
16 more retailers have this diamond
Prices start from $987 USDSave up to $7,773 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+
3.15ct Radiant
$987 USD