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Cushion|Lab Grown|IGI

1.71ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG529242861

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG529242861

Diamond specifications and retailer prices

From $317 SGD
$248 USD
As of October 30, 2026
Save $1,217 SGD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,534 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.71ct lab-grown cushion diamond

This 1.71ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529242861 or 529242861. Listed at 11 retailers as of October 30, 2026, with prices from $317 to $1,534, a $1,217 spread on the same certified stone. Brilliant Earth lists it at $1,534. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529242861
Dimensions7.10 × 6.81 × 4.57 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.10 mm6.81 mm1.71 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529242861
Side View
Table 63.5%Crown 34.9°Girdle: MED-THKPavilion 40°Culet: NoneDepth 67.1%

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 30
Current: $1,534 SGD|Low: $225 SGD|High: $1,534 SGD|Avg: $800 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 10$317 SGD
Retailer 7$352 SGD
Retailer 8$473 SGD
Retailer 5$638 SGD
Retailer 4$654 SGD
Retailer 9$685 SGD
Retailer 11$763 SGD
Retailer 6$920 SGD
Retailer 3$1,197 SGD
Retailer 2$1,409 SGD
Brilliant Earth$1,534 SGD

43 data points across 11 retailers

11 retailers$317 SGD to $1,534 SGD

A
Cheapest Retailer
-
$317 SGD
$248 USD
Final sale: no returns
Retailer 2
-
$352 SGD
$275 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$473 SGD
$370 USD
View
A
Retailer 4
-
$638 SGD
€475 EUR
View
A
Retailer 5
-
$654 SGD
£403 GBP
View
A
Retailer 6
-
$685 SGD
$536 USD
View
A
Retailer 7
-
$763 SGD
$597 USD
View
B+
Retailer 8
-
$920 SGD
$720 USD
View
B
Retailer 9
-
$1,197 SGD
$937 USD
View
B+
Retailer 10
-
$1,409 SGD
£868 GBP
View
Most Expensive
B
Brilliant Earth
11260489A · Oct 31
$1,534 SGD
$1,200 USD
View
10 more retailers have this diamond
Prices start from $317 SGDSave up to $1,217 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 Cushion
$317 SGD