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Round|Lab Grown|IGI

4.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG660448727

Shape and cutting style on the report: Round brilliant

Certificate IGI LG660448727

Diamond specifications and retailer prices

From HK$23,013 HKD
£2,310 GBP
As of October 30, 2026
Save HK$136,411 HKD (86%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: HK$159,425 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown round diamond

This 4.51ct lab-grown round 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 LG660448727 or 660448727. Listed at 29 retailers as of October 30, 2026, with prices from HK$23,013 to HK$159,425, a HK$136,411 spread on the same certified stone. Do Amore Diamonds lists it at HK$159,425. 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

4.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660448727
Dimensions10.60 × 10.53 × 6.55 mm
L/W Ratio1.01
Girdle conditionFaceted
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
10.60 mm10.53 mm4.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660448727
Side View
Table 57.0%Crown 35.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A+
Exceptional
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$159,425 HKD|Low: HK$22,243 HKD|High: HK$210,422 HKD|Avg: HK$62,905 HKD
Do Amore 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
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 14HK$23,013 HKD
Retailer 4HK$23,168 HKD
Retailer 10HK$25,946 HKD
Retailer 5HK$26,879 HKD
Retailer 8HK$26,879 HKD
Retailer 2HK$26,911 HKD
Retailer 7HK$27,193 HKD
Retailer 6HK$34,262 HKD
Retailer 20HK$38,617 HKD
Retailer 15HK$39,319 HKD
Retailer 18HK$40,805 HKD
Retailer 16HK$63,133 HKD
Retailer 19HK$63,930 HKD
Retailer 9HK$73,997 HKD
Retailer 3HK$74,095 HKD
Retailer 17HK$75,597 HKD
Retailer 11HK$101,671 HKD
Retailer 12HK$103,850 HKD
Retailer 13HK$111,566 HKD
Do Amore DiamondsHK$159,425 HKD

34 data points across 20 retailers

29 retailersHK$23,013 HKD to HK$159,425 HKD

A+
Cheapest Retailer
-
HK$23,013 HKD
£2,310 GBP
A
Retailer 2
-
HK$23,168 HKD
$2,953 USD
View
A
Retailer 3
-
HK$25,946 HKD
$3,307 USD
View
Final sale: no returns
Retailer 4
-
HK$26,879 HKD
$3,426 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
HK$26,879 HKD
$3,426 USD
View
A
Retailer 6
-
HK$26,911 HKD
$3,430 USD
View
A
Retailer 7
-
HK$27,193 HKD
$3,466 USD
View
Retailer 8
-
HK$29,939 HKD
$3,816 USD
View
Price last confirmed 35 days ago
Retailer 9
-
HK$31,383 HKD
$4,000 USD
View
Price last confirmed 37 days ago
Retailer 10
-
HK$34,254 HKD
$4,366 USD
View
Price last confirmed 34 days ago
A
Retailer 11
-
HK$34,262 HKD
$4,367 USD
View
A
Retailer 12
-
HK$35,149 HKD
View
A
Retailer 13
-
HK$37,071 HKD
$4,725 USD
View
A
Retailer 14
-
HK$38,617 HKD
$4,922 USD
View
A
Retailer 15
-
HK$39,319 HKD
£3,946 GBP
View
A
Retailer 16
-
HK$40,805 HKD
$5,201 USD
View
Retailer 17
-
HK$47,906 HKD
$6,106 USD
View
Price last confirmed 33 days ago
Retailer 18
-
HK$54,585 HKD
$6,957 USD
View
Price last confirmed 89 days ago
B+
Retailer 19
-
HK$63,133 HKD
ZAR 129,997 ZAR
View
Retailer 20
-
HK$63,930 HKD
A$12,536 AUD
View
Price last confirmed 8 days ago
B+
Retailer 21
-
HK$67,795 HKD
$8,641 USD
View
B+
Retailer 22
-
HK$73,997 HKD
$9,432 USD
View
B+
Retailer 23
-
HK$74,095 HKD
$9,444 USD
View
B+
Retailer 24
-
HK$75,597 HKD
£7,587 GBP
View
Retailer 25
-
HK$84,096 HKD
£8,440 GBP
View
Price last confirmed 21 days ago
B
Retailer 26
-
HK$101,671 HKD
SGD 17,512 SGD
View
B
Retailer 27
-
HK$103,850 HKD
$13,237 USD
View
B+
Retailer 28
-
HK$111,566 HKD
$14,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-9447D23E4 · Oct 31
HK$159,425 HKD
$20,320 USD
View
28 more retailers have this diamond
Prices start from HK$23,013 HKDSave up to HK$136,411 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+
4.51ct Round
HK$23,013 HKD