Princess|Lab Grown|IGI

1.61ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG389924481

Shape and cutting style on the report: Princess cut

Certificate IGI LG389924481

Diamond specifications and retailer prices

From $659 USD
£519 GBP
As of October 27, 2026
Save $839 USD (56%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,420 USD at Do Amore Diamonds · As of October 26, 2026
View at Do Amore Diamonds

About this 1.61ct lab-grown princess diamond

This 1.61ct lab-grown princess 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 LG389924481 or 389924481. Listed at 12 retailers as of October 26, 2026, with a 127% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.61
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG389924481
Dimensions6.43 × 6.35 × 4.49 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
6.43 mm6.35 mm1.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG389924481
Side View
Table 71.0%Crown 40.6°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 70.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $2,420 USD|Low: $417 USD|High: $2,420 USD|Avg: $981 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 27, 2026
Retailer 6$417 USD
Retailer 3$420 USD
Retailer 7$559 USD
Retailer 2$659 USD
Retailer 9$897 USD
Retailer 5$1,039 USD
Retailer 10$1,211 USD
Retailer 8$1,364 USD
Retailer 4$1,497 USD
Do Amore Diamonds$2,420 USD

29 data points across 10 retailers

12 retailers$659 USD to $1,497 USD

Retailer 1
-
$215 USD
Price last confirmed 41 days ago
Retailer 2
-
$263 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$417 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$420 USD
View
Price last confirmed 6 days ago
Retailer 5
-
$559 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$659 USD
£519 GBP
View
Retailer 7
-
$897 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$1,039 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$1,211 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
$1,364 USD
View
B
Retailer 11
-
$1,497 USD
£1,179 GBP
View
Most Expensive
Do Amore Diamonds
27-7B4218BF2 · Oct 26
$2,420 USD
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from $659 USDSave up to $839 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.

B+
1.61ct Princess
$659 USD