Oval|Lab Grown|IGI

1.51ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG818625504

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818625504

Diamond specifications and retailer prices

From $206 USD
As of October 29, 2026
Save $825 USD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,031 USD 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818625504 or 818625504. Listed at 15 retailers as of October 29, 2026, with prices from $206 to $1,031, a $825 spread on the same certified stone. MOH London lists it at $1,031. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818625504
Dimensions9.11 × 6.52 × 3.83 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.11 mm6.52 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG818625504
Side View
Table 63.0%Crown 34.9°Girdle: STK-THKPavilion 37.6°Culet: NoneDepth 58.7%

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: $1,031 USD|Low: $198 USD|High: $1,660 USD|Avg: $590 USD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 11$206 USD
Retailer 12$231 USD
Retailer 3$239 USD
Retailer 6$256 USD
Retailer 13$256 USD
Retailer 9$344 USD
Retailer 8$433 USD
Retailer 14$442 USD
Retailer 5$492 USD
Retailer 4$587 USD
Retailer 15$822 USD
Retailer 10$825 USD
Retailer 7$876 USD
Retailer 2$1,020 USD
MOH London$1,031 USD

29 data points across 15 retailers

15 retailers$206 USD to $1,031 USD

A
Cheapest Retailer
-
$206 USD
A
Retailer 2
-
$231 USD
View
Final sale: no returns
A
Retailer 3
-
$239 USD
View
A
Retailer 4
-
$256 USD
View
A
Retailer 5
-
$256 USD
View
Retailer 6
-
$344 USD
£270 GBP
View
Price last confirmed 14 days ago
Retailer 7
-
$433 USD
ZAR 6,989 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$442 USD
View
A
Retailer 9
-
$492 USD
View
B+
Retailer 10
-
$587 USD
View
B+
Retailer 11
-
$822 USD
View
B
Retailer 12
-
$825 USD
View
B
Retailer 13
-
$876 USD
View
B
Retailer 14
-
$1,020 USD
View
Most Expensive
B
MOH London
LG818625504 · Oct 29
$1,031 USD
£812 GBP
View
14 more retailers have this diamond
Prices start from $206 USDSave up to $825 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
$206 USD