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Round|Lab Grown|IGI

1.71ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG447099943

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099943

Diamond specifications and retailer prices

From $1,253 SGD
$980 USD
As of October 30, 2026
Save $5,355 SGD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,608 SGD at MOH London · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099943 or 447099943. Listed at 11 retailers as of October 29, 2026, with prices from $1,253 to $6,608, a $5,355 spread on the same certified stone. MOH London lists it at $6,608. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099943
Dimensions7.67 × 7.70 × 4.73 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.67 mm7.70 mm1.71 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099943
Side View
Table 54.5%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.6%

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 30
Current: $6,608 SGD|Low: $1,253 SGD|High: $6,660 SGD|Avg: $3,255 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$1,253 SGD
Retailer 4$1,984 SGD
Retailer 7$2,222 SGD
Retailer 5$2,301 SGD
Retailer 8$2,518 SGD
Retailer 9$3,112 SGD
Retailer 6$3,622 SGD
Retailer 3$4,069 SGD
MOH London$6,608 SGD

15 data points across 9 retailers

11 retailers$1,253 SGD to $6,608 SGD

A
Cheapest Retailer
-
$1,253 SGD
$980 USD
B+
Retailer 2
-
$1,984 SGD
$1,552 USD
View
B+
Retailer 3
-
$2,158 SGD
$1,688 USD
View
B+
Retailer 4
-
$2,222 SGD
$1,738 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,301 SGD
$1,800 USD
View
Retailer 6
-
$2,301 SGD
$1,800 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$2,518 SGD
$1,970 USD
View
B
Retailer 8
-
$3,622 SGD
$2,833 USD
View
B
Retailer 9
-
$4,069 SGD
$3,183 USD
View
B
Retailer 10
-
$4,313 SGD
$3,374 USD
View
Most Expensive
B
MOH London
LG447099943 · Oct 29
$6,608 SGD
£4,070 GBP
View
10 more retailers have this diamond
Prices start from $1,253 SGDSave up to $5,355 SGD

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
$1,253 SGD