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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG839685027

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839685027

Diamond specifications and retailer prices

From $319 AUD
$224 USD
As of October 29, 2026
Save $1,269 AUD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,587 AUD at MOH London · As of October 26, 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 top-tier cut grade and certified by IGI LG839685027 or 839685027. Listed at 11 retailers as of October 26, 2026, with prices from $319 to $1,587, a $1,269 spread on the same certified stone. MOH London lists it at $1,587. 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

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839685027
Dimensions9.26 × 6.44 × 4.04 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.26 mm6.44 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839685027
Side View
Table 61.0%Crown 34.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.7%

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: $1,587 AUD|Low: $306 AUD|High: $1,604 AUD|Avg: $905 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5$319 AUD
Retailer 11$370 AUD
Retailer 8$437 AUD
Retailer 2$442 AUD
Retailer 7$673 AUD
Retailer 9$730 AUD
Retailer 3$1,266 AUD
Retailer 10$1,271 AUD
Retailer 4$1,276 AUD
Retailer 6$1,324 AUD
MOH London$1,587 AUD

21 data points across 11 retailers

11 retailers$319 AUD to $1,587 AUD

A
Cheapest Retailer
-
$319 AUD
$224 USD
A
Retailer 2
-
$370 AUD
$260 USD
View
A
Retailer 3
-
$437 AUD
HK$2,400 HKD
View
A
Retailer 4
-
$442 AUD
£244 GBP
View
A
Retailer 5
-
$673 AUD
$473 USD
View
A
Retailer 6
-
$730 AUD
$513 USD
View
B
Retailer 7
-
$1,266 AUD
SGD 1,202 SGD
View
B
Retailer 8
-
$1,271 AUD
$893 USD
View
B
Retailer 9
-
$1,276 AUD
$896 USD
View
Retailer 10
-
$1,324 AUD
$930 USD
View
Price last confirmed 12 days ago
Most Expensive
B
MOH London
LG839685027 · Oct 26
$1,587 AUD
£878 GBP
View
10 more retailers have this diamond
Prices start from $319 AUDSave up to $1,269 AUD

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
$319 AUD