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1.71ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG799635486

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799635486

Diamond specifications and retailer prices

From $398 NZD
$224 USD
As of November 1, 2026
Save $1,581 NZD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,980 NZD at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG799635486 or 799635486. Listed at 16 retailers as of November 1, 2026, with prices from $398 to $1,980, a $1,581 spread on the same certified stone. MOH London lists it at $1,980. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799635486
Dimensions7.69 × 7.73 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.69 mm7.73 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799635486
Side View
Table 59.0%Crown 33.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.6%

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: Nov 1
Current: $1,980 NZD|Low: $398 NZD|High: $2,004 NZD|Avg: $1,136 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$398 NZD
Retailer 8$494 NZD
Retailer 3$830 NZD
Retailer 9$841 NZD
Retailer 4$919 NZD
Retailer 10$958 NZD
Retailer 2$1,312 NZD
Retailer 5$1,475 NZD
Retailer 7$1,848 NZD
MOH London$1,980 NZD

41 data points across 10 retailers

16 retailers$398 NZD to $1,980 NZD

A
Cheapest Retailer
-
$398 NZD
$224 USD
A
Retailer 2
-
$462 NZD
$260 USD
View
Retailer 3
-
$494 NZD
$278 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$494 NZD
$278 USD
View
A
Retailer 5
-
$830 NZD
€445 EUR
View
B+
Retailer 6
-
$841 NZD
$473 USD
View
A
Retailer 7
-
$919 NZD
£407 GBP
View
A
Retailer 8
-
$946 NZD
$532 USD
View
A
Retailer 9
-
$958 NZD
$539 USD
View
B+
Retailer 10
-
$1,312 NZD
$738 USD
View
Retailer 11
-
$1,448 NZD
$815 USD
View
Price last confirmed 47 days ago
B+
Retailer 12
-
$1,475 NZD
$830 USD
View
B+
Retailer 13
-
$1,589 NZD
$894 USD
View
B
Retailer 14
-
$1,682 NZD
$946 USD
View
B
Retailer 15
-
$1,848 NZD
$1,040 USD
View
Most Expensive
B
MOH London
LG799635486 · Nov 1
$1,980 NZD
£877 GBP
View
15 more retailers have this diamond
Prices start from $398 NZDSave up to $1,581 NZD

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
$398 NZD