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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 $224 USD
As of October 29, 2026
Save $891 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,115 USD 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 $224 to $1,115, a $891 spread on the same certified stone. MOH London lists it at $1,115. 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
Color
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

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: Oct 29
Current: $1,115 USD|Low: $307 USD|High: $1,126 USD|Avg: $702 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6$307 USD
Retailer 2$310 USD
Retailer 5$473 USD
Retailer 7$513 USD
Retailer 8$889 USD
Retailer 3$896 USD
Retailer 4$930 USD
MOH London$1,115 USD

18 data points across 8 retailers

11 retailers$224 USD to $1,115 USD

A
Cheapest Retailer
-
$224 USD
A
Retailer 2
-
$260 USD
View
A
Retailer 3
-
$307 USD
HK$2,400 HKD
View
A
Retailer 4
-
$310 USD
£244 GBP
View
A
Retailer 5
-
$473 USD
View
A
Retailer 6
-
$513 USD
View
B
Retailer 7
-
$889 USD
SGD 1,202 SGD
View
B
Retailer 8
-
$893 USD
View
B
Retailer 9
-
$896 USD
View
Retailer 10
-
$930 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG839685027 · Oct 26
$1,115 USD
£878 GBP
View
10 more retailers have this diamond
Prices start from $224 USDSave up to $891 USD

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
$224 USD