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Oval|Lab Grown|IGI

3.12ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG768631106

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG768631106

Diamond specifications and retailer prices

From $1,260 AUD
$885 USD
As of October 29, 2026
Save $11,380 AUD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,640 AUD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3.12ct lab-grown oval diamond

This 3.12ct lab-grown oval 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 LG768631106 or 768631106. Listed at 19 retailers as of October 29, 2026, with prices from $1,260 to $12,640, a $11,380 spread on the same certified stone. Blue Nile lists it at $12,640. 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

3.12
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631106
Dimensions11.36 × 8.05 × 5.21 mm
L/W Ratio1.41
Girdle conditionFaceted
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
11.36 mm8.05 mm3.12 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768631106
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 64.7%

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 29
Current: $12,640 AUD|Low: $1,260 AUD|High: $14,720 AUD|Avg: $5,240 AUD
Blue Nile
Retailer 2
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Retailer 4
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 31, 2026
Retailer 16$1,260 AUD
Retailer 6$1,379 AUD
Retailer 12$1,728 AUD
Retailer 2$1,780 AUD
Retailer 14$1,926 AUD
Retailer 4$2,346 AUD
Retailer 7$2,718 AUD
Retailer 5$3,025 AUD
Retailer 11$3,253 AUD
Retailer 15$3,328 AUD
Retailer 8$3,862 AUD
Retailer 3$4,196 AUD
Retailer 17$5,503 AUD
Retailer 9$7,766 AUD
Retailer 10$10,616 AUD
Retailer 18$11,189 AUD
Retailer 13$12,029 AUD
Blue Nile$12,640 AUD

37 data points across 18 retailers

19 retailers$1,260 AUD to $12,640 AUD

A
Cheapest Retailer
-
$1,260 AUD
$885 USD
A
Retailer 2
-
$1,379 AUD
$969 USD
View
A
Retailer 3
-
$1,668 AUD
$1,172 USD
View
Final sale: no returns
A
Retailer 4
-
$1,728 AUD
$1,214 USD
View
A
Retailer 5
-
$1,780 AUD
$1,250 USD
View
A
Retailer 6
-
$1,926 AUD
£1,065 GBP
View
A
Retailer 7
-
$2,346 AUD
$1,648 USD
View
A
Retailer 8
-
$2,718 AUD
€1,818 EUR
View
A
Retailer 9
-
$3,025 AUD
$2,125 USD
View
A
Retailer 10
-
$3,253 AUD
$2,285 USD
View
A
Retailer 11
-
$3,328 AUD
$2,338 USD
View
Retailer 12
-
$3,862 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
$4,196 AUD
$2,947 USD
View
B+
Retailer 14
-
$5,503 AUD
£3,044 GBP
View
Retailer 15
-
$7,766 AUD
$5,455 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$10,616 AUD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$11,189 AUD
$7,860 USD
View
B
Retailer 18
-
$12,029 AUD
$8,450 USD
View
Most Expensive
B
Blue Nile
28329513 · Oct 31
$12,640 AUD
$8,879 USD
View
18 more retailers have this diamond
Prices start from $1,260 AUDSave up to $11,380 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
3.12ct Oval
$1,260 AUD