CaratHunter
Plans
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 $1,570 NZD
$885 USD
As of October 29, 2026
Save $14,184 NZD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,754 NZD 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 $1,570 to $15,754, a $14,184 spread on the same certified stone. Blue Nile lists it at $15,754. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $15,754 NZD|Low: $1,570 NZD|High: $18,346 NZD|Avg: $6,425 NZD
Blue Nile
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 5$1,570 NZD
Retailer 14$1,657 NZD
Retailer 17$2,154 NZD
Retailer 15$2,218 NZD
Retailer 3$2,401 NZD
Retailer 9$2,924 NZD
Retailer 12$3,178 NZD
Retailer 16$4,054 NZD
Retailer 4$4,148 NZD
Retailer 2$4,404 NZD
Retailer 8$5,229 NZD
Retailer 13$5,484 NZD
Retailer 6$6,859 NZD
Retailer 10$9,679 NZD
Retailer 11$13,067 NZD
Retailer 7$13,946 NZD
Retailer 18$14,993 NZD
Blue Nile$15,754 NZD

35 data points across 18 retailers

19 retailers$1,570 NZD to $15,754 NZD

A
Cheapest Retailer
-
$1,570 NZD
$885 USD
A
Retailer 2
-
$1,657 NZD
$934 USD
View
A
Retailer 3
-
$2,079 NZD
$1,172 USD
View
Final sale: no returns
A
Retailer 4
-
$2,154 NZD
$1,214 USD
View
A
Retailer 5
-
$2,218 NZD
$1,250 USD
View
A
Retailer 6
-
$2,401 NZD
£1,065 GBP
View
A
Retailer 7
-
$2,924 NZD
$1,648 USD
View
A
Retailer 8
-
$3,178 NZD
€1,706 EUR
View
A
Retailer 9
-
$4,054 NZD
$2,285 USD
View
A
Retailer 10
-
$4,148 NZD
$2,338 USD
View
A
Retailer 11
-
$4,404 NZD
A$3,819 AUD
View
A
Retailer 12
-
$5,229 NZD
$2,947 USD
View
B+
Retailer 13
-
$5,484 NZD
$3,091 USD
View
B+
Retailer 14
-
$6,859 NZD
£3,044 GBP
View
Retailer 15
-
$9,679 NZD
$5,455 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
$13,067 NZD
A$11,330 AUD
View
B
Retailer 17
-
$13,946 NZD
$7,860 USD
View
B
Retailer 18
-
$14,993 NZD
$8,450 USD
View
Most Expensive
B
Blue Nile
28329513 · Oct 31
$15,754 NZD
$8,879 USD
View
18 more retailers have this diamond
Prices start from $1,570 NZDSave up to $14,184 NZD

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
$1,570 NZD