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Princess|Lab Grown|IGI

3.51ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG754594391

Shape and cutting style on the report: Princess cut

Certificate IGI LG754594391

Diamond specifications and retailer prices

From HK$20,917 HKD
$2,666 USD
As of October 30, 2026
Save HK$122,974 HKD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$151,966 HKD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 3.51ct lab-grown princess diamond

This 3.51ct lab-grown princess sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754594391 or 754594391. Listed at 17 retailers as of October 30, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594391
Dimensions8.40 × 8.15 × 5.86 mm
L/W Ratio1.03
Culet sizePointed
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
8.40 mm8.15 mm3.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594391
Side View
Table 64.0%Crown 43.5°Girdle: MediumPavilion 36.6°Culet: NoneDepth 71.9%

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: HK$151,966 HKD|Low: HK$20,917 HKD|High: HK$292,409 HKD|Avg: HK$73,935 HKD|-2.1%
Novita Diamonds
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
October 31, 2026
Retailer 14HK$20,917 HKD
Retailer 2HK$22,753 HKD
Retailer 11HK$23,835 HKD
Retailer 15HK$25,263 HKD
Retailer 16HK$26,558 HKD
Retailer 5HK$33,462 HKD
Retailer 10HK$35,604 HKD
Retailer 17HK$43,604 HKD
Retailer 6HK$47,121 HKD
Retailer 9HK$47,937 HKD
Retailer 8HK$50,997 HKD
Retailer 4HK$65,935 HKD
Retailer 3HK$68,244 HKD
Retailer 7HK$78,433 HKD
Retailer 12HK$84,027 HKD
Retailer 13HK$143,890 HKD
Novita DiamondsHK$151,966 HKD

33 data points across 17 retailers

17 retailersHK$20,917 HKD to HK$143,890 HKD

A
Cheapest Retailer
-
HK$20,917 HKD
$2,666 USD
A
Retailer 2
-
HK$22,753 HKD
$2,900 USD
View
A
Retailer 3
-
HK$23,835 HKD
$3,038 USD
View
A
Retailer 4
-
HK$25,263 HKD
$3,220 USD
View
A
Retailer 5
-
HK$26,558 HKD
$3,385 USD
View
A
Retailer 6
-
HK$33,462 HKD
$4,265 USD
View
A
Retailer 7
-
HK$35,604 HKD
$4,538 USD
View
A
Retailer 8
-
HK$43,604 HKD
€5,293 EUR
View
B+
Retailer 9
-
HK$47,121 HKD
$6,006 USD
View
B+
Retailer 10
-
HK$47,937 HKD
$6,110 USD
View
Final sale: no returns
Retailer 11
-
HK$50,997 HKD
$6,500 USD
View
Price last confirmed 13 days ago
B+
Retailer 12
-
HK$65,935 HKD
$8,404 USD
View
B+
Retailer 13
-
HK$68,244 HKD
£6,849 GBP
View
Retailer 14
-
HK$78,433 HKD
A$15,380 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
HK$84,027 HKD
$10,710 USD
View
B
Retailer 16
-
HK$143,890 HKD
$18,340 USD
View
Most Expensive
Novita Diamonds
cert_754594391 · Oct 8
HK$151,966 HKD
A$29,799 AUD
View
Price last confirmed 23 days ago
16 more retailers have this diamond
Prices start from HK$20,917 HKDSave up to HK$122,974 HKD

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
3.51ct Princess
HK$20,917 HKD