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Oval|Lab Grown|IGI

3.12ct D IF Oval Lab Grown Diamond

VG • D/IF • IGI LG844602149

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG844602149

Diamond specifications and retailer prices

From $921 USD
As of October 29, 2026
Save $7,958 USD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,879 USD 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 very-good cut grade and certified by IGI LG844602149 or 844602149. Listed at 17 retailers as of October 29, 2026, with prices from $921 to $8,879, a $7,958 spread on the same certified stone. Blue Nile lists it at $8,879. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844602149
Dimensions11.82 × 8.18 × 5.17 mm
L/W Ratio1.44
Girdle conditionFaceted
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
11.82 mm8.18 mm3.12 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844602149
Side View
Table 56.0%Crown 36.2°Girdle: MED-STKPavilion 40°Culet: NoneDepth 63.2%

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: $8,879 USD|Low: $921 USD|High: $14,640 USD|Avg: $3,686 USD
Blue Nile
Retailer 2
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Retailer 19
October 31, 2026
Retailer 4$921 USD
Retailer 19$1,002 USD
Retailer 15$1,253 USD
Retailer 2$1,260 USD
Retailer 14$1,408 USD
Retailer 5$1,713 USD
Retailer 9$1,979 USD
Retailer 16$2,211 USD
Retailer 18$2,342 USD
Retailer 12$2,377 USD
Retailer 7$2,766 USD
Retailer 3$3,045 USD
Retailer 11$3,701 USD
Retailer 6$4,084 USD
Retailer 10$4,846 USD
Retailer 8$5,455 USD
Retailer 17$8,180 USD
Retailer 13$8,450 USD
Blue Nile$8,879 USD

17 data points across 19 retailers

17 retailers$921 USD to $8,879 USD

A
Cheapest Retailer
-
$921 USD
A
Retailer 2
-
$1,002 USD
View
A
Retailer 3
-
$1,253 USD
View
A
Retailer 4
-
$1,260 USD
View
A
Retailer 5
-
$1,408 USD
£1,109 GBP
View
A
Retailer 6
-
$1,713 USD
View
A
Retailer 7
-
$2,211 USD
View
A
Retailer 8
-
$2,342 USD
View
A
Retailer 9
-
$2,377 USD
View
Retailer 10
-
$2,766 USD
A$4,256 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$3,045 USD
View
Retailer 12
-
$3,701 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$4,084 USD
£3,216 GBP
View
Retailer 14
-
$5,455 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
$8,180 USD
View
B
Retailer 16
-
$8,450 USD
View
Most Expensive
B
Blue Nile
30380015 · Oct 31
$8,879 USD
View
16 more retailers have this diamond
Prices start from $921 USDSave up to $7,958 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 Oval
$921 USD