Radiant|Lab Grown|IGI

3.15ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG768631131

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

Certificate IGI LG768631131

Diamond specifications and retailer prices

From $1,460 USD
As of October 29, 2026
Save $8,400 USD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,860 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 LG768631131 or 768631131. Listed at 11 retailers as of October 29, 2026, with prices from $1,460 to $9,860, a $8,400 spread on the same certified stone. Do Amore Diamonds lists it at $9,860. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631131
Dimensions10.44 × 10.44 × 7.15 mm
L/W Ratio1.00
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
10.44 mm10.44 mm3.15 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768631131
Side View
Table 59.0%Crown 40°Girdle: STK-THKPavilion 32.4°Culet: NoneDepth 66.4%

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 29
Current: $9,860 USD|Low: $1,270 USD|High: $12,420 USD|Avg: $4,415 USD|-6.8%
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
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Retailer 16
October 30, 2026
Retailer 6$1,270 USD
Retailer 7$1,386 USD
Retailer 10$1,460 USD
Retailer 14$1,498 USD
Retailer 13$2,115 USD
Retailer 16$2,385 USD
Retailer 9$2,427 USD
Retailer 15$2,622 USD
Retailer 4$3,378 USD
Retailer 12$3,637 USD
Retailer 11$4,594 USD
Retailer 8$5,310 USD
Retailer 5$5,465 USD
Retailer 3$7,357 USD
Retailer 2$9,220 USD
Do Amore Diamonds$9,860 USD

17 data points across 16 retailers

11 retailers$1,460 USD to $9,860 USD

A
Cheapest Retailer
-
$1,460 USD
A
Retailer 2
-
$1,498 USD
View
A
Retailer 3
-
$2,115 USD
View
Retailer 4
-
$2,385 USD
€2,271 EUR
View
Price last confirmed 7 days ago
A
Retailer 5
-
$2,427 USD
View
A
Retailer 6
-
$2,622 USD
View
B+
Retailer 7
-
$3,637 USD
View
B+
Retailer 8
-
$4,594 USD
£3,617 GBP
View
Retailer 9
-
$7,357 USD
A$11,319 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$9,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-D4C13AA8D · Oct 30
$9,860 USD
View
10 more retailers have this diamond
Prices start from $1,460 USDSave up to $8,400 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
$1,460 USD