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Oval|Lab Grown|IGI

3.12ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG844664145

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG844664145

Diamond specifications and retailer prices

From $921 USD
As of October 29, 2026
Save $13,639 USD (94%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $14,560 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 LG844664145 or 844664145. Listed at 16 retailers as of October 29, 2026, with prices from $921 to $14,560, a $13,639 spread on the same certified stone. Brilliant Earth lists it at $14,560. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844664145
Dimensions11.70 × 8.33 × 5.03 mm
L/W Ratio1.40
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
11.70 mm8.33 mm3.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844664145
Side View
Table 60.0%Crown 33.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A+
Exceptional
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: $14,560 USD|Low: $921 USD|High: $14,560 USD|Avg: $3,883 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
October 30, 2026
Retailer 3$921 USD
Retailer 17$1,002 USD
Retailer 12$1,253 USD
Retailer 15$1,290 USD
Retailer 2$1,408 USD
Retailer 4$1,713 USD
Retailer 9$1,979 USD
Retailer 13$2,211 USD
Retailer 16$2,342 USD
Retailer 5$2,348 USD
Retailer 7$2,766 USD
Retailer 18$3,045 USD
Retailer 11$4,022 USD
Retailer 10$4,846 USD
Retailer 8$5,455 USD
Retailer 14$8,180 USD
Retailer 6$8,879 USD
Brilliant Earth$14,560 USD

15 data points across 18 retailers

16 retailers$921 USD to $14,560 USD

A+
Cheapest Retailer
-
$921 USD
A
Retailer 2
-
$1,002 USD
View
A
Retailer 3
-
$1,253 USD
View
A
Retailer 4
-
$1,290 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
-
$2,348 USD
View
Retailer 10
-
$2,766 USD
A$4,256 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$3,045 USD
View
B+
Retailer 12
-
$4,022 USD
£3,167 GBP
View
Retailer 13
-
$5,455 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$8,180 USD
View
B
Retailer 15
-
$8,879 USD
View
Most Expensive
B
Brilliant Earth
22165708Y · Oct 29
$14,560 USD
View
15 more retailers have this diamond
Prices start from $921 USDSave up to $13,639 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