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Oval|Lab Grown|IGI

1.70ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG451057553

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057553

Diamond specifications and retailer prices

From $850 USD
As of October 29, 2026
Save $3,468 USD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,318 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1.7ct lab-grown oval diamond

This 1.7ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057553 or 451057553. Listed at 9 retailers as of October 25, 2026, with prices from $850 to $4,318, a $3,468 spread on the same certified stone. MOH London lists it at $4,318. 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

1.70
Carat
J
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057553
Dimensions9.30 × 6.77 × 4.23 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.30 mm6.77 mm1.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057553
Side View
Table 55.0%Crown 33.9°Girdle: MED-VTKPavilion 41.4°Culet: NoneDepth 62.5%

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: $4,318 USD|Low: $850 USD|High: $4,370 USD|Avg: $2,483 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 25, 2026
Retailer 2$850 USD
Retailer 5$1,917 USD
Retailer 3$2,133 USD
Retailer 4$2,644 USD
Retailer 6$3,004 USD
MOH London$4,318 USD

8 data points across 6 retailers

9 retailers$850 USD to $4,318 USD

A
Cheapest Retailer
-
$850 USD
B+
Retailer 2
-
$1,157 USD
View
B+
Retailer 3
-
$1,259 USD
View
Retailer 4
-
$1,342 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$1,342 USD
View
B
Retailer 6
-
$2,133 USD
View
B
Retailer 7
-
$2,516 USD
View
B
Retailer 8
-
$2,644 USD
View
Most Expensive
B
MOH London
LG451057553 · Oct 25
$4,318 USD
£3,400 GBP
View
8 more retailers have this diamond
Prices start from $850 USDSave up to $3,468 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
1.70ct Oval
$850 USD