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Round|Lab Grown|IGI

4.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG754595249

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754595249

Diamond specifications and retailer prices

From HK$29,053 HKD
$3,703 USD
As of October 29, 2026
Save HK$88,209 HKD (75%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$117,262 HKD at With Clarity · As of October 30, 2026
View at With Clarity

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 LG754595249 or 754595249. Listed at 28 retailers as of October 29, 2026, with prices from HK$29,053 to HK$117,262, a HK$88,209 spread on the same certified stone. With Clarity lists it at HK$117,262. 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 angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754595249
Dimensions10.65 × 10.69 × 6.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.65 mm10.69 mm4.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754595249
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

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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 29
Current: HK$111,566 HKD|Low: HK$28,496 HKD|High: HK$216,855 HKD|Avg: HK$70,708 HKD|-48.6%
Retailer 1
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
October 30, 2026
Retailer 9HK$29,053 HKD
Retailer 6HK$29,657 HKD
Retailer 7HK$39,931 HKD
Retailer 14HK$41,519 HKD
Retailer 12HK$41,543 HKD
Retailer 3HK$45,505 HKD
Retailer 10HK$48,431 HKD
Retailer 8HK$64,056 HKD
Retailer 11HK$64,919 HKD
Retailer 4HK$75,311 HKD
Retailer 13HK$76,703 HKD
Retailer 2HK$97,552 HKD
Retailer 5HK$107,053 HKD
Retailer 1HK$111,566 HKD

41 data points across 14 retailers

28 retailersHK$29,053 HKD to HK$117,262 HKD

Retailer 1
-
HK$25,946 HKD
$3,307 USD
Price last confirmed 32 days ago
Retailer 2
-
HK$28,229 HKD
$3,598 USD
View
Price last confirmed 24 days ago
Retailer 3
-
HK$28,229 HKD
$3,598 USD
View
Price last confirmed 37 days ago
Retailer 4
-
HK$28,229 HKD
$3,598 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
HK$29,053 HKD
$3,703 USD
View
Final sale: no returns
A
Retailer 6
-
HK$29,657 HKD
$3,780 USD
View
Retailer 7
-
HK$29,688 HKD
$3,784 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
HK$30,104 HKD
$3,837 USD
View
Retailer 9
-
HK$30,104 HKD
$3,837 USD
View
Price last confirmed 28 days ago
A
Retailer 10
-
HK$36,956 HKD
View
Retailer 11
-
HK$37,612 HKD
$4,794 USD
View
Price last confirmed 30 days ago
A
Retailer 12
-
HK$39,931 HKD
£4,007 GBP
View
A
Retailer 13
-
HK$41,519 HKD
$5,292 USD
View
A
Retailer 14
-
HK$41,543 HKD
$5,295 USD
View
A
Retailer 15
-
HK$45,505 HKD
$5,800 USD
View
A
Retailer 16
-
HK$45,638 HKD
$5,817 USD
View
A
Retailer 17
-
HK$48,431 HKD
€5,879 EUR
View
Retailer 18
-
HK$56,076 HKD
$7,147 USD
View
Price last confirmed 82 days ago
B+
Retailer 19
-
HK$64,056 HKD
ZAR 131,898 ZAR
View
Retailer 20
-
HK$64,919 HKD
A$12,730 AUD
View
Price last confirmed 8 days ago
B+
Retailer 21
-
HK$75,311 HKD
$9,599 USD
View
B+
Retailer 22
-
HK$76,703 HKD
£7,698 GBP
View
B+
Retailer 23
-
HK$83,508 HKD
$10,644 USD
View
Retailer 24
-
HK$97,552 HKD
A$19,129 AUD
View
Price last confirmed 22 days ago
B
Retailer 25
-
HK$105,479 HKD
$13,444 USD
View
B
Retailer 26
-
HK$107,053 HKD
SGD 18,439 SGD
View
B
Retailer 27
-
HK$111,566 HKD
$14,220 USD
View
Most Expensive
B
With Clarity
754595249 · Oct 30
HK$117,262 HKD
$14,946 USD
View
27 more retailers have this diamond
Prices start from HK$29,053 HKDSave up to HK$88,209 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$29,053 HKD