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Oval|Lab Grown|IGI

1.70ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445038813

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038813

Diamond specifications and retailer prices

From $1,260 USD
As of October 29, 2026
Save $3,459 USD (73%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,719 USD at MOH London · As of October 29, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445038813 or 445038813. Listed at 12 retailers as of October 29, 2026, with prices from $1,260 to $4,719, a $3,459 spread on the same certified stone. MOH London lists it at $4,719. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038813
Dimensions9.04 × 6.82 × 4.29 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.04 mm6.82 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445038813
Side View
Table 56.5%Crown 35.1°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 62.9%

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: $4,719 USD|Low: $840 USD|High: $4,751 USD|Avg: $2,157 USD|+0.5%
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
October 30, 2026
Retailer 9$840 USD
Retailer 8$1,260 USD
Retailer 13$1,370 USD
Retailer 14$1,410 USD
Retailer 3$1,461 USD
Retailer 10$1,461 USD
Retailer 7$1,635 USD
Retailer 2$2,005 USD
Retailer 5$2,030 USD
Retailer 11$2,315 USD
Retailer 4$2,723 USD
Retailer 12$2,739 USD
Retailer 6$4,183 USD
MOH London$4,719 USD

37 data points across 14 retailers

12 retailers$1,260 USD to $4,719 USD

Retailer 1
-
$840 USD
Price last confirmed 18 days ago
A
Retailer 2
-
$1,260 USD
View
A
Retailer 3
-
$1,370 USD
View
A
Retailer 4
-
$1,410 USD
View
Final sale: no returns
A
Retailer 5
-
$1,461 USD
View
Retailer 6
-
$1,461 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$1,635 USD
View
B+
Retailer 8
-
$2,005 USD
£1,579 GBP
View
B+
Retailer 9
-
$2,315 USD
View
B
Retailer 10
-
$2,723 USD
View
B
Retailer 11
-
$2,739 USD
View
Most Expensive
B
MOH London
LG445038813 · Oct 29
$4,719 USD
£3,716 GBP
View
11 more retailers have this diamond
Prices start from $1,260 USDSave up to $3,459 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
$1,260 USD