CaratHunter
Plans
Oval|Lab Grown|IGI

1.51ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG442066684

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG442066684

Diamond specifications and retailer prices

From $840 USD
As of November 6, 2026
Save $4,008 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,848 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442066684 or 442066684. Listed at 11 retailers as of November 5, 2026, with prices from $840 to $4,848, a $4,008 spread on the same certified stone. MOH London lists it at $4,848. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442066684
Dimensions8.83 × 6.47 × 4.10 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
8.83 mm6.47 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442066684
Side View
Table 61.0%Crown 36.3°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,848 USD|Low: $840 USD|High: $4,926 USD|Avg: $2,301 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2$840 USD
Retailer 5$1,304 USD
Retailer 9$1,419 USD
Retailer 10$1,460 USD
Retailer 6$1,513 USD
Retailer 11$1,685 USD
Retailer 3$2,084 USD
Retailer 7$2,393 USD
Retailer 12$2,820 USD
Retailer 8$2,836 USD
Retailer 4$4,331 USD
MOH London$4,848 USD

16 data points across 12 retailers

11 retailers$840 USD to $4,848 USD

A
Cheapest Retailer
-
$840 USD
B+
Retailer 2
-
$1,304 USD
View
B+
Retailer 3
-
$1,419 USD
View
B+
Retailer 4
-
$1,460 USD
View
Final sale: no returns
Retailer 5
-
$1,513 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,513 USD
View
B+
Retailer 7
-
$1,685 USD
View
B
Retailer 8
-
$2,393 USD
View
B
Retailer 9
-
$2,820 USD
View
B
Retailer 10
-
$2,836 USD
View
Most Expensive
B
MOH London
LG442066684 · Nov 5
$4,848 USD
£3,817 GBP
View
10 more retailers have this diamond
Prices start from $840 USDSave up to $4,008 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
$840 USD