CaratHunter
Plans
Oval|Lab Grown|IGI

3.12ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754594331

Certificate IGI LG754594331

Diamond specifications and retailer prices

From $939 USD
Save $9,721 USD (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,660 USD at Brilliant Earth
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 LG754594331 or 754594331. Listed at 20 retailers, with prices from $939 to $10,660 at Brilliant Earth, a $9,721 spread on the same certified stone. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594331
Dimensions11.43 × 11.43 × 8.13 mm
L/W Ratio1.00
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
11.43 mm11.43 mm3.12 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594331
Side View
Table 58.0%Crown 36.6°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 28
Current: $10,660 USD|Low: $837 USD|High: $11,520 USD|Avg: $3,997 USD|-7.5%
Brilliant Earth
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 1, 2026
Retailer 16$939 USD
Retailer 21$1,022 USD
Retailer 10$1,172 USD
Retailer 3$1,265 USD
Retailer 6$1,272 USD
Retailer 2$1,444 USD
Retailer 7$1,454 USD
Retailer 4$1,876 USD
Retailer 20$2,254 USD
Retailer 9$2,277 USD
Retailer 8$2,343 USD
Retailer 12$2,560 USD
Retailer 17$2,719 USD
Retailer 19$3,116 USD
Retailer 15$4,128 USD
Retailer 14$4,758 USD
Retailer 18$5,535 USD
Retailer 13$7,436 USD
Retailer 5$8,340 USD
Retailer 11$8,879 USD
Brilliant Earth$10,660 USD

24 data points across 21 retailers

20 retailers$939 USD to $10,660 USD

A
Cheapest Retailer
-
$939 USD
A
Retailer 2
-
$1,022 USD
View
A
Retailer 3
-
$1,172 USD
View
A
Retailer 4
-
$1,265 USD
View
A
Retailer 5
-
$1,272 USD
View
A
Retailer 6
-
$1,444 USD
£1,137 GBP
View
A
Retailer 7
-
$1,454 USD
View
A
Retailer 8
-
$1,876 USD
€1,787 EUR
View
A
Retailer 9
-
$2,254 USD
View
A
Retailer 10
-
$2,277 USD
View
A
Retailer 11
-
$2,343 USD
View
A
Retailer 12
-
$2,560 USD
A$3,938 AUD
View
A
Retailer 13
-
$2,719 USD
A$4,183 AUD
View
A
Retailer 14
-
$3,116 USD
View
B+
Retailer 15
-
$4,128 USD
£3,250 GBP
View
B+
Retailer 16
-
$5,535 USD
View
B
Retailer 17
-
$7,436 USD
A$11,440 AUD
View
B
Retailer 18
-
$8,340 USD
View
B
Retailer 19
-
$8,879 USD
View
Most Expensive
B
Brilliant Earth
18707277Y · Oct 1
$10,660 USD
View
19 more retailers have this diamond
Prices start from $939 USDSave up to $9,721 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.

A
3.12ct Oval
$939 USD