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Radiant|Lab Grown|IGI

3.12ct D IF Radiant Lab Grown Diamond

D/IF • IGI LG768631511

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

Certificate IGI LG768631511

Diamond specifications and retailer prices

From $1,100 USD
As of October 30, 2026
Save $8,670 USD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,770 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI LG768631511 or 768631511. Listed at 17 retailers as of October 30, 2026, with prices from $1,100 to $9,770, a $8,670 spread on the same certified stone. Do Amore Diamonds lists it at $9,770. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.12
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631511
Dimensions10.43 × 7.19 × 4.70 mm
L/W Ratio1.45
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
10.43 mm7.19 mm3.12 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768631511
Side View
Table 66.0%Crown 45.2°Girdle: STK-THKPavilion 33.2°Culet: NoneDepth 65.4%

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: $9,770 USD|Low: $1,100 USD|High: $10,480 USD|Avg: $3,701 USD|-6.8%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 17
October 31, 2026
Retailer 12$1,100 USD
Retailer 3$1,236 USD
Retailer 9$1,374 USD
Retailer 11$1,446 USD
Retailer 6$1,485 USD
Retailer 16$2,095 USD
Retailer 2$2,294 USD
Retailer 13$2,384 USD
Retailer 10$2,589 USD
Retailer 15$2,641 USD
Retailer 4$3,348 USD
Retailer 14$3,605 USD
Retailer 17$4,681 USD
Retailer 5$5,375 USD
Retailer 7$6,957 USD
Retailer 8$8,470 USD
Do Amore Diamonds$9,770 USD

32 data points across 17 retailers

17 retailers$1,100 USD to $9,770 USD

A
Cheapest Retailer
-
$1,100 USD
A
Retailer 2
-
$1,236 USD
View
A
Retailer 3
-
$1,374 USD
View
Final sale: no returns
A
Retailer 4
-
$1,446 USD
View
A
Retailer 5
-
$1,485 USD
View
A
Retailer 6
-
$2,095 USD
View
A
Retailer 7
-
$2,294 USD
€2,185 EUR
View
A
Retailer 8
-
$2,384 USD
View
A
Retailer 9
-
$2,589 USD
View
A
Retailer 10
-
$2,641 USD
View
Retailer 11
-
$3,348 USD
A$5,151 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$3,605 USD
View
B+
Retailer 13
-
$4,681 USD
£3,686 GBP
View
Retailer 14
-
$5,375 USD
View
Price last confirmed 10 days ago
Retailer 15
-
$6,957 USD
A$10,703 AUD
View
Price last confirmed 22 days ago
B
Retailer 16
-
$8,470 USD
View
Most Expensive
B
Do Amore Diamonds
27-0023999C4 · Oct 31
$9,770 USD
View
16 more retailers have this diamond
Prices start from $1,100 USDSave up to $8,670 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
3.12ct Radiant
$1,100 USD