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Princess|Lab Grown|IGI

1.66ct D FL Princess Lab Grown Diamond

EX • D/FL • IGI LG842609052

Shape and cutting style on the report: Princess cut

Certificate IGI LG842609052

Diamond specifications and retailer prices

From $1,527 USD
As of October 28, 2026
Save $6,132 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,659 USD at Riddles Jewelry · As of October 27, 2026
View at Riddles Jewelry

About this 1.66ct lab-grown princess diamond

This 1.66ct lab-grown princess 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 LG842609052 or 842609052. Listed at 19 retailers as of October 27, 2026, with prices from $1,527 to $7,659, a $6,132 spread on the same certified stone. Riddles Jewelry lists it at $7,659. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842609052
Dimensions6.49 × 6.39 × 4.47 mm
L/W Ratio1.02
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
6.49 mm6.39 mm1.66 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842609052
Side View
Table 72.0%Crown 42.5°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 70.0%

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 28
Current: $2,258 USD|Low: $1,527 USD|High: $7,659 USD|Avg: $3,606 USD|-0.1%
Retailer 1
Retailer 2
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Retailer 4
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
Riddles Jewelry
October 27, 2026
Retailer 16$1,527 USD
Retailer 2$1,660 USD
Retailer 17$1,688 USD
Retailer 4$1,693 USD
Retailer 5$1,953 USD
Retailer 11$2,081 USD
Retailer 1$2,258 USD
Retailer 10$2,540 USD
Retailer 13$2,706 USD
Retailer 6$3,581 USD
Retailer 18$3,652 USD
Retailer 9$3,714 USD
Retailer 14$4,518 USD
Retailer 15$4,642 USD
Retailer 3$4,737 USD
Retailer 12$4,779 USD
Retailer 8$5,214 USD
Retailer 7$7,191 USD
Riddles Jewelry$7,659 USD

17 data points across 19 retailers

19 retailers$1,527 USD to $7,659 USD

A
Cheapest Retailer
-
$1,527 USD
Retailer 2
-
$1,660 USD
View
Price last confirmed 5 days ago
Retailer 3
-
$1,688 USD
£1,329 GBP
View
Price last confirmed 16 days ago
Retailer 4
-
$1,953 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$2,081 USD
£1,639 GBP
View
B+
Retailer 6
-
$2,258 USD
€2,150 EUR
View
B+
Retailer 7
-
$2,540 USD
View
Retailer 8
-
$2,706 USD
ZAR 43,709 ZAR
View
Price last confirmed 8 days ago
Retailer 9
-
$3,581 USD
£2,820 GBP
View
Price last confirmed 7 days ago
B
Retailer 10
-
$3,652 USD
View
B
Retailer 11
-
$3,714 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
$4,518 USD
CA$6,275 CAD
View
Retailer 13
-
$4,642 USD
View
Price last confirmed 8 days ago
Retailer 14
-
$4,737 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
$4,779 USD
£3,763 GBP
View
Retailer 16
-
$5,214 USD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$5,360 USD
View
B
Retailer 18
-
$7,191 USD
View
Most Expensive
B
Riddles Jewelry
1993827386 · Oct 27
$7,659 USD
View
18 more retailers have this diamond
Prices start from $1,527 USDSave up to $6,132 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
1.66ct Princess
$1,527 USD