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Oval|Lab Grown|IGI

1.70ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG451057264

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057264

Diamond specifications and retailer prices

From $950 USD
As of October 28, 2026
Save $3,769 USD (80%) vs most expensive(unlock to see where)
11 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057264 or 451057264. Listed at 11 retailers as of October 28, 2026, with prices from $950 to $4,719, a $3,769 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
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057264
Dimensions9.15 × 6.76 × 4.25 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.15 mm6.76 mm1.70 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057264
Side View
Table 59.0%Crown 32.9°Girdle: MED-THKPavilion 42.3°Culet: NoneDepth 62.9%

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: Oct 28
Current: $4,719 USD|Low: $950 USD|High: $4,757 USD|Avg: $2,134 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
October 30, 2026
Retailer 7$950 USD
Retailer 6$1,260 USD
Retailer 11$1,370 USD
Retailer 12$1,410 USD
Retailer 8$1,461 USD
Retailer 13$1,461 USD
Retailer 4$2,030 USD
Retailer 2$2,180 USD
Retailer 9$2,315 USD
Retailer 3$2,723 USD
Retailer 10$2,739 USD
Retailer 5$3,270 USD
MOH London$4,719 USD

40 data points across 13 retailers

11 retailers$950 USD to $4,719 USD

A
Cheapest Retailer
-
$950 USD
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
B+
Retailer 5
-
$1,461 USD
View
Retailer 6
-
$1,461 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$2,180 USD
£1,716 GBP
View
B
Retailer 8
-
$2,315 USD
View
B
Retailer 9
-
$2,723 USD
View
B
Retailer 10
-
$2,739 USD
View
Most Expensive
B
MOH London
LG451057264 · Oct 29
$4,719 USD
£3,716 GBP
View
10 more retailers have this diamond
Prices start from $950 USDSave up to $3,769 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
$950 USD