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Round|Lab Grown|GIA

4.51ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 6515404393

Certificate GIA 6515404393

Diamond specifications and retailer prices

From HK$52,982 HKD
$6,753 USD
As of October 29, 2026
Save HK$157,440 HKD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$330,618 HKD at Do Amore Diamonds · As of October 30, 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 GIA 6515404393. Listed at 17 retailers as of October 29, 2026, with a 297% 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

4.51
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6515404393
Dimensions10.57 × 10.50 × 6.55 mm
L/W Ratio1.01
Top View
10.57 mm10.50 mm4.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515404393
Side View
Table 56.0%Crown 35°Girdle: ThickPavilion 40.8°Culet: NoneDepth 62.1%

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 29
Current: HK$330,618 HKD|Low: HK$51,931 HKD|High: HK$337,522 HKD|Avg: HK$109,915 HKD|-2.0%
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
October 31, 2026
Retailer 14HK$52,982 HKD
Retailer 15HK$54,167 HKD
Retailer 4HK$55,100 HKD
Retailer 8HK$57,383 HKD
Retailer 17HK$61,196 HKD
Retailer 11HK$63,644 HKD
Retailer 12HK$69,748 HKD
Retailer 16HK$70,643 HKD
Retailer 13HK$71,239 HKD
Retailer 3HK$76,299 HKD
Retailer 7HK$78,379 HKD
Retailer 2HK$115,332 HKD
Retailer 10HK$133,917 HKD
Retailer 5HK$147,534 HKD
Retailer 9HK$149,207 HKD
Retailer 6HK$210,422 HKD
Do Amore DiamondsHK$330,618 HKD

33 data points across 17 retailers

17 retailersHK$52,982 HKD to HK$210,422 HKD

A
Cheapest Retailer
-
HK$52,982 HKD
$6,753 USD
A
Retailer 2
-
HK$54,167 HKD
$6,904 USD
View
A
Retailer 3
-
HK$55,100 HKD
$7,023 USD
View
B+
Retailer 4
-
HK$57,281 HKD
$7,301 USD
View
B+
Retailer 5
-
HK$57,383 HKD
$7,314 USD
View
B+
Retailer 6
-
HK$61,196 HKD
$7,800 USD
View
B+
Retailer 7
-
HK$69,748 HKD
$8,890 USD
View
B+
Retailer 8
-
HK$70,643 HKD
$9,004 USD
View
B+
Retailer 9
-
HK$71,239 HKD
$9,080 USD
View
B+
Retailer 10
-
HK$76,299 HKD
$9,725 USD
View
B+
Retailer 11
-
HK$78,379 HKD
$9,990 USD
View
Final sale: no returns
B+
Retailer 12
-
HK$115,332 HKD
€14,000 EUR
View
B+
Retailer 13
-
HK$133,917 HKD
£13,440 GBP
View
B
Retailer 14
-
HK$145,279 HKD
$18,517 USD
View
Retailer 15
-
HK$147,534 HKD
A$28,930 AUD
View
Price last confirmed 22 days ago
B
Retailer 16
-
HK$210,422 HKD
$26,820 USD
View
Most Expensive
Do Amore Diamonds
27-177AE55DD · Oct 30
HK$330,618 HKD
$42,140 USD
View
Price under review
16 more retailers have this diamond
Prices start from HK$52,982 HKDSave up to HK$157,440 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$52,982 HKD