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Round|Lab Grown|IGI

1.71ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG559281314

Shape and cutting style on the report: Round brilliant

Certificate IGI LG559281314

Diamond specifications and retailer prices

From $203 USD
As of October 29, 2026
Save $912 USD (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,115 USD at MOH London · As of October 28, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559281314 or 559281314. Listed at 9 retailers as of October 28, 2026, with prices from $203 to $1,115, a $912 spread on the same certified stone. MOH London lists it at $1,115. 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

1.71
Carat
F
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559281314
Dimensions7.72 × 7.69 × 4.69 mm
L/W Ratio1.00
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
7.72 mm7.69 mm1.71 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559281314
Side View
Table 56.5%Crown 33.7°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.9%

Caratlytics Score

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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: $1,115 USD|Low: $168 USD|High: $1,460 USD|Avg: $668 USD|-2.1%
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 29, 2026
Retailer 12$203 USD
Retailer 13$230 USD
Retailer 11$236 USD
Retailer 10$435 USD
Retailer 2$482 USD
Retailer 4$540 USD
Retailer 5$602 USD
Retailer 14$705 USD
Retailer 3$788 USD
Retailer 8$813 USD
Retailer 7$875 USD
Retailer 9$894 USD
MOH London$1,115 USD
Retailer 6$1,460 USD

38 data points across 14 retailers

9 retailers$203 USD to $1,115 USD

A
Cheapest Retailer
-
$203 USD
A
Retailer 2
-
$230 USD
View
Final sale: no returns
A
Retailer 3
-
$236 USD
View
B+
Retailer 4
-
$435 USD
View
A
Retailer 5
-
$482 USD
£380 GBP
View
B
Retailer 6
-
$813 USD
View
Retailer 7
-
$875 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$894 USD
View
Most Expensive
B
MOH London
LG559281314 · Oct 26
$1,115 USD
£878 GBP
View
8 more retailers have this diamond
Prices start from $203 USDSave up to $912 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
1.71ct Round
$203 USD