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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 $9,614 AUD
$6,753 USD
As of October 29, 2026
Save $28,567 AUD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $59,991 AUD 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: $59,991 AUD|Low: $9,423 AUD|High: $61,243 AUD|Avg: $19,944 AUD|-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 14$9,614 AUD
Retailer 15$9,829 AUD
Retailer 4$9,998 AUD
Retailer 8$10,412 AUD
Retailer 17$11,104 AUD
Retailer 11$11,548 AUD
Retailer 12$12,656 AUD
Retailer 16$12,818 AUD
Retailer 13$12,926 AUD
Retailer 3$13,845 AUD
Retailer 7$14,222 AUD
Retailer 2$20,927 AUD
Retailer 10$24,299 AUD
Retailer 5$26,770 AUD
Retailer 9$27,074 AUD
Retailer 6$38,181 AUD
Do Amore Diamonds$59,991 AUD

33 data points across 17 retailers

17 retailers$9,614 AUD to $38,181 AUD

A
Cheapest Retailer
-
$9,614 AUD
$6,753 USD
A
Retailer 2
-
$9,829 AUD
$6,904 USD
View
A
Retailer 3
-
$9,998 AUD
$7,023 USD
View
B+
Retailer 4
-
$10,394 AUD
$7,301 USD
View
B+
Retailer 5
-
$10,412 AUD
$7,314 USD
View
B+
Retailer 6
-
$11,104 AUD
$7,800 USD
View
B+
Retailer 7
-
$12,656 AUD
$8,890 USD
View
B+
Retailer 8
-
$12,818 AUD
$9,004 USD
View
B+
Retailer 9
-
$12,926 AUD
$9,080 USD
View
B+
Retailer 10
-
$13,845 AUD
$9,725 USD
View
B+
Retailer 11
-
$14,222 AUD
$9,990 USD
View
Final sale: no returns
B+
Retailer 12
-
$20,927 AUD
€14,000 EUR
View
B+
Retailer 13
-
$24,299 AUD
£13,440 GBP
View
B
Retailer 14
-
$26,361 AUD
$18,517 USD
View
Retailer 15
-
$26,770 AUD
View
Price last confirmed 22 days ago
B
Retailer 16
-
$38,181 AUD
$26,820 USD
View
Most Expensive
Do Amore Diamonds
27-177AE55DD · Oct 30
$59,991 AUD
$42,140 USD
View
Price under review
16 more retailers have this diamond
Prices start from $9,614 AUDSave up to $28,567 AUD

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
$9,614 AUD