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Radiant|Lab Grown|IGI

1.71ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG811638560

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG811638560

Diamond specifications and retailer prices

From $762 SGD
$596 USD
As of October 30, 2026
Save $4,454 SGD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,223 SGD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.71ct lab-grown radiant diamond

This 1.71ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811638560 or 811638560. Listed at 23 retailers as of October 28, 2026, with a 585% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811638560
Dimensions8.23 × 6.01 × 4.02 mm
L/W Ratio1.37
Cert comments
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
8.23 mm6.01 mm1.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811638560
Side View
Table 67.0%Crown 45.4°Girdle: MED-STKPavilion 36°Culet: NoneDepth 66.9%

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 30
Current: $5,101 SGD|Low: $762 SGD|High: $7,006 SGD|Avg: $2,637 SGD|-27.2%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 12$762 SGD
Retailer 19$853 SGD
Retailer 17$885 SGD
Retailer 11$945 SGD
Retailer 18$1,112 SGD
Retailer 4$1,451 SGD
Retailer 13$1,477 SGD
Retailer 3$1,541 SGD
Retailer 15$1,623 SGD
Retailer 6$1,742 SGD
Retailer 5$2,047 SGD
Retailer 9$2,484 SGD
Retailer 7$2,747 SGD
Retailer 8$3,056 SGD
Retailer 2$3,099 SGD
Retailer 10$3,212 SGD
Retailer 20$3,380 SGD
Retailer 14$4,122 SGD
Brilliant Earth$5,101 SGD
Retailer 16$5,216 SGD

28 data points across 20 retailers

23 retailers$762 SGD to $5,216 SGD

A
Cheapest Retailer
-
$762 SGD
$596 USD
A
Retailer 2
-
$853 SGD
$667 USD
View
A
Retailer 3
-
$885 SGD
$692 USD
View
Final sale: no returns
Retailer 4
-
$943 SGD
$738 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$945 SGD
$739 USD
View
A
Retailer 6
-
$1,112 SGD
$870 USD
View
A
Retailer 7
-
$1,451 SGD
$1,135 USD
View
A
Retailer 8
-
$1,477 SGD
£910 GBP
View
Retailer 9
-
$1,541 SGD
€1,148 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$1,623 SGD
ZAR 20,514 ZAR
View
B+
Retailer 11
-
$1,742 SGD
$1,363 USD
View
B+
Retailer 12
-
$2,047 SGD
$1,601 USD
View
B+
Retailer 13
-
$2,484 SGD
$1,943 USD
View
B+
Retailer 14
-
$2,747 SGD
£1,692 GBP
View
B+
Retailer 15
-
$3,056 SGD
$2,390 USD
View
B+
Retailer 16
-
$3,099 SGD
$2,424 USD
View
B+
Retailer 17
-
$3,212 SGD
View
B+
Retailer 18
-
$3,315 SGD
$2,593 USD
View
B
Retailer 19
-
$3,380 SGD
$2,644 USD
View
B
Retailer 20
-
$4,122 SGD
£2,539 GBP
View
B
Retailer 21
-
$5,101 SGD
$3,990 USD
View
B
Retailer 22
-
$5,216 SGD
$4,080 USD
View
Most Expensive
Brilliant Earth
20987967A · Sep 28
$7,223 SGD
$5,650 USD
View
Price last confirmed 32 days ago
22 more retailers have this diamond
Prices start from $762 SGDSave up to $4,454 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 Radiant
$762 SGD