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Oval|Lab Grown|IGI

0.51ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG407936479

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG407936479

Diamond specifications and retailer prices

From $515 NZD
$290 USD
As of November 2, 2026
Save $2,453 NZD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,968 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407936479 or 407936479. Listed at 12 retailers as of November 1, 2026, with prices from $515 to $2,968, a $2,453 spread on the same certified stone. MOH London lists it at $2,968. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle36.2°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407936479
Dimensions6.09 × 4.53 × 2.84 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.09 mm4.53 mm0.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407936479
Side View
Table 61.5%Crown 36.2°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.7%

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: Nov 2
Current: $2,968 NZD|Low: $515 NZD|High: $3,004 NZD|Avg: $1,355 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4$515 NZD
Retailer 7$597 NZD
Retailer 10$666 NZD
Retailer 8$741 NZD
Retailer 11$741 NZD
Retailer 9$1,196 NZD
Retailer 2$1,316 NZD
Retailer 5$1,334 NZD
Retailer 6$2,172 NZD
Retailer 3$2,706 NZD
MOH London$2,968 NZD

42 data points across 11 retailers

12 retailers$515 NZD to $2,968 NZD

A
Cheapest Retailer
-
$515 NZD
$290 USD
B+
Retailer 2
-
$597 NZD
$336 USD
View
B+
Retailer 3
-
$666 NZD
$375 USD
View
Final sale: no returns
B+
Retailer 4
-
$693 NZD
$390 USD
View
B+
Retailer 5
-
$741 NZD
$417 USD
View
Retailer 6
-
$741 NZD
$417 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$1,196 NZD
$673 USD
View
B
Retailer 8
-
$1,316 NZD
£583 GBP
View
B
Retailer 9
-
$2,172 NZD
$1,222 USD
View
B
Retailer 10
-
$2,382 NZD
$1,340 USD
View
B
Retailer 11
-
$2,706 NZD
$1,523 USD
View
Most Expensive
B
MOH London
LG407936479 · Nov 1
$2,968 NZD
£1,315 GBP
View
11 more retailers have this diamond
Prices start from $515 NZDSave up to $2,453 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
0.51ct Oval
$515 NZD