CaratHunter
Plans
Round|Lab Grown|IGI

1.70ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG494161659

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494161659

Diamond specifications and retailer prices

From $1,230 USD
As of October 29, 2026
Save $3,374 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,604 USD at MOH London · As of October 27, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round 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 LG494161659 or 494161659. Listed at 10 retailers as of October 27, 2026, with prices from $1,230 to $4,604, a $3,374 spread on the same certified stone. MOH London lists it at $4,604. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494161659
Dimensions7.58 × 7.63 × 4.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.58 mm7.63 mm1.70 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494161659
Side View
Table 56.5%Crown 34.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.0%

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 29
Current: $4,604 USD|Low: $1,230 USD|High: $4,652 USD|Avg: $2,502 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 27, 2026
Retailer 2$1,230 USD
Retailer 4$1,510 USD
Retailer 5$1,554 USD
Retailer 7$2,207 USD
Retailer 3$2,542 USD
Retailer 6$2,921 USD
Retailer 8$3,604 USD
MOH London$4,604 USD

10 data points across 8 retailers

10 retailers$1,230 USD to $4,604 USD

A
Cheapest Retailer
-
$1,230 USD
A
Retailer 2
-
$1,388 USD
View
B+
Retailer 3
-
$1,510 USD
View
B+
Retailer 4
-
$1,554 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,610 USD
View
Retailer 6
-
$1,610 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$2,542 USD
View
B
Retailer 8
-
$2,921 USD
View
B
Retailer 9
-
$3,017 USD
View
Most Expensive
B
MOH London
LG494161659 · Oct 27
$4,604 USD
£3,625 GBP
View
9 more retailers have this diamond
Prices start from $1,230 USDSave up to $3,374 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 Round
$1,230 USD