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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 $2,077 AUD
$1,459 USD
As of October 30, 2026
Save $11,960 AUD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $14,037 AUD at Do Amore Diamonds · As of October 31, 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 30, 2026, with prices from $2,077 to $14,037, a $11,960 spread on the same certified stone. Do Amore Diamonds lists it at $14,037. 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
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631131
Dimensions10.44 × 7.15 × 4.75 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
10.44 mm7.15 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

How it works →
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: $14,037 AUD|Low: $1,808 AUD|High: $17,681 AUD|Avg: $6,247 AUD|-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
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 6$1,808 AUD
Retailer 7$1,973 AUD
Retailer 12$2,077 AUD
Retailer 10$2,128 AUD
Retailer 3$3,011 AUD
Retailer 9$3,296 AUD
Retailer 14$3,455 AUD
Retailer 11$3,721 AUD
Retailer 4$4,809 AUD
Retailer 16$5,178 AUD
Retailer 15$6,539 AUD
Retailer 8$7,559 AUD
Retailer 5$7,780 AUD
Retailer 2$9,873 AUD
Retailer 13$13,126 AUD
Do Amore Diamonds$14,037 AUD

18 data points across 16 retailers

11 retailers$2,077 AUD to $14,037 AUD

A
Cheapest Retailer
-
$2,077 AUD
$1,459 USD
A
Retailer 2
-
$2,128 AUD
$1,495 USD
View
A
Retailer 3
-
$3,011 AUD
$2,115 USD
View
A
Retailer 4
-
$3,296 AUD
€2,205 EUR
View
A
Retailer 5
-
$3,455 AUD
$2,427 USD
View
A
Retailer 6
-
$3,721 AUD
$2,614 USD
View
B+
Retailer 7
-
$5,178 AUD
$3,637 USD
View
B+
Retailer 8
-
$6,539 AUD
£3,617 GBP
View
B
Retailer 9
-
$9,873 AUD
View
B
Retailer 10
-
$13,126 AUD
$9,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-D4C13AA8D · Oct 31
$14,037 AUD
$9,860 USD
View
10 more retailers have this diamond
Prices start from $2,077 AUDSave up to $11,960 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
3.15ct Radiant
$2,077 AUD