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Oval|Lab Grown|IGI

1.51ct K SI1 Oval Lab Grown Diamond

ID • K/SI1 • IGI LG436073489

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436073489

Diamond specifications and retailer prices

From $917 USD
As of November 5, 2026
Save $2,681 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,598 USD at MOH London · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073489 or 436073489. Listed at 9 retailers as of November 5, 2026, with prices from $917 to $3,598, a $2,681 spread on the same certified stone. MOH London lists it at $3,598. 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
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073489
Dimensions9.01 × 6.61 × 4.03 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.01 mm6.61 mm1.51 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073489
Side View
Table 56.5%Crown 34.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.0%

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 5
Current: $3,598 USD|Low: $880 USD|High: $3,650 USD|Avg: $1,955 USD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4$917 USD
Retailer 8$998 USD
Retailer 5$1,064 USD
Retailer 2$1,240 USD
Retailer 9$1,572 USD
Retailer 6$1,704 USD
Retailer 3$2,366 USD
Retailer 7$2,990 USD
Retailer 10$3,045 USD
MOH London$3,598 USD

19 data points across 10 retailers

9 retailers$917 USD to $3,598 USD

A
Cheapest Retailer
-
$917 USD
A
Retailer 2
-
$998 USD
View
Retailer 3
-
$1,064 USD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,064 USD
View
A
Retailer 5
-
$1,240 USD
View
B+
Retailer 6
-
$1,704 USD
View
B
Retailer 7
-
$2,366 USD
View
B
Retailer 8
-
$2,990 USD
View
Most Expensive
B
MOH London
LG436073489 · Nov 5
$3,598 USD
£2,833 GBP
View
8 more retailers have this diamond
Prices start from $917 USDSave up to $2,681 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
$917 USD