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Oval|Lab Grown|IGI

3.12ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754594331

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754594331

Diamond specifications and retailer prices

From $1,131 SGD
$885 USD
As of October 29, 2026
Save $10,220 SGD (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,351 SGD 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 LG754594331 or 754594331. Listed at 20 retailers as of October 29, 2026, with prices from $1,131 to $11,351, a $10,220 spread on the same certified stone. Blue Nile lists it at $11,351. 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 angle36.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594331
Dimensions11.43 × 8.13 × 5.12 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
11.43 mm8.13 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

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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: $1,598 SGD|Low: $1,131 SGD|High: $13,219 SGD|Avg: $4,081 SGD|-1.2%
Retailer 1
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
October 31, 2026
Retailer 16$1,131 SGD
Retailer 4$1,239 SGD
Retailer 12$1,552 SGD
Retailer 1$1,598 SGD
Retailer 14$1,730 SGD
Retailer 2$2,107 SGD
Retailer 7$2,440 SGD
Retailer 3$2,717 SGD
Retailer 11$2,921 SGD
Retailer 15$2,989 SGD
Retailer 6$3,272 SGD
Retailer 8$3,468 SGD
Retailer 18$3,768 SGD
Retailer 5$4,949 SGD
Retailer 9$6,974 SGD
Retailer 10$9,534 SGD
Retailer 17$10,048 SGD
Retailer 13$10,802 SGD

37 data points across 18 retailers

20 retailers$1,131 SGD to $11,351 SGD

A
Cheapest Retailer
-
$1,131 SGD
$885 USD
A
Retailer 2
-
$1,239 SGD
$969 USD
View
A
Retailer 3
-
$1,498 SGD
$1,172 USD
View
Final sale: no returns
A
Retailer 4
-
$1,552 SGD
$1,214 USD
View
A
Retailer 5
-
$1,598 SGD
$1,250 USD
View
A
Retailer 6
-
$1,730 SGD
£1,065 GBP
View
A
Retailer 7
-
$2,107 SGD
$1,648 USD
View
A
Retailer 8
-
$2,440 SGD
€1,818 EUR
View
A
Retailer 9
-
$2,717 SGD
$2,125 USD
View
A
Retailer 10
-
$2,921 SGD
$2,285 USD
View
A
Retailer 11
-
$2,989 SGD
$2,338 USD
View
A
Retailer 12
-
$3,272 SGD
A$3,938 AUD
View
Retailer 13
-
$3,468 SGD
A$4,174 AUD
View
Price last confirmed 9 days ago
A
Retailer 14
-
$3,768 SGD
$2,947 USD
View
B+
Retailer 15
-
$4,949 SGD
£3,048 GBP
View
Retailer 16
-
$6,974 SGD
$5,455 USD
View
Price last confirmed 12 days ago
Retailer 17
-
$9,534 SGD
A$11,473 AUD
View
Price last confirmed 22 days ago
B
Retailer 18
-
$10,048 SGD
$7,860 USD
View
B
Retailer 19
-
$10,802 SGD
$8,450 USD
View
Most Expensive
B
Blue Nile
28013553 · Oct 31
$11,351 SGD
$8,879 USD
View
19 more retailers have this diamond
Prices start from $1,131 SGDSave up to $10,220 SGD

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
$1,131 SGD