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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG839682997

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839682997

Diamond specifications and retailer prices

From $515 NZD
$290 USD
As of November 1, 2026
Save $2,059 NZD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,573 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839682997 or 839682997. Listed at 10 retailers as of October 29, 2026, with prices from $515 to $2,573, a $2,059 spread on the same certified stone. MOH London lists it at $2,573. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839682997
Dimensions9.54 × 6.34 × 4.02 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.54 mm6.34 mm1.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839682997
Side View
Table 62.0%Crown 32.2°Girdle: MED-STKPavilion 42.4°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
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: Nov 1
Current: $2,573 NZD|Low: $639 NZD|High: $2,573 NZD|Avg: $1,261 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$639 NZD
Retailer 2$711 NZD
Retailer 6$914 NZD
Retailer 7$930 NZD
Retailer 8$1,049 NZD
Retailer 3$1,120 NZD
Retailer 5$1,962 NZD
MOH London$2,573 NZD

12 data points across 8 retailers

10 retailers$515 NZD to $2,573 NZD

A
Cheapest Retailer
-
$515 NZD
$290 USD
Retailer 2
-
$639 NZD
$360 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$639 NZD
$360 USD
View
A
Retailer 4
-
$711 NZD
£315 GBP
View
B+
Retailer 5
-
$914 NZD
$515 USD
View
B+
Retailer 6
-
$930 NZD
$524 USD
View
B+
Retailer 7
-
$1,049 NZD
$591 USD
View
B+
Retailer 8
-
$1,120 NZD
£497 GBP
View
B
Retailer 9
-
$1,962 NZD
$1,106 USD
View
Most Expensive
B
MOH London
LG839682997 · Oct 29
$2,573 NZD
£1,142 GBP
View
9 more retailers have this diamond
Prices start from $515 NZDSave up to $2,059 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
1.51ct Oval
$515 NZD