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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 €6,045 EUR
$6,753 USD
As of October 29, 2026
Save €17,962 EUR (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €37,719 EUR 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
Color
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: €37,719 EUR|Low: €5,925 EUR|High: €38,507 EUR|Avg: €12,540 EUR|-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€6,045 EUR
Retailer 15€6,180 EUR
Retailer 4€6,286 EUR
Retailer 8€6,547 EUR
Retailer 17€6,982 EUR
Retailer 11€7,261 EUR
Retailer 12€7,957 EUR
Retailer 16€8,059 EUR
Retailer 13€8,127 EUR
Retailer 3€8,705 EUR
Retailer 7€8,942 EUR
Retailer 2€13,158 EUR
Retailer 10€15,278 EUR
Retailer 5€16,832 EUR
Retailer 9€17,023 EUR
Retailer 6€24,006 EUR
Do Amore Diamonds€37,719 EUR

33 data points across 17 retailers

17 retailers€6,045 EUR to €24,006 EUR

A
Cheapest Retailer
-
€6,045 EUR
$6,753 USD
A
Retailer 2
-
€6,180 EUR
$6,904 USD
View
A
Retailer 3
-
€6,286 EUR
$7,023 USD
View
B+
Retailer 4
-
€6,535 EUR
$7,301 USD
View
B+
Retailer 5
-
€6,547 EUR
$7,314 USD
View
B+
Retailer 6
-
€6,982 EUR
$7,800 USD
View
B+
Retailer 7
-
€7,957 EUR
$8,890 USD
View
B+
Retailer 8
-
€8,059 EUR
$9,004 USD
View
B+
Retailer 9
-
€8,127 EUR
$9,080 USD
View
B+
Retailer 10
-
€8,705 EUR
$9,725 USD
View
B+
Retailer 11
-
€8,942 EUR
$9,990 USD
View
Final sale: no returns
B+
Retailer 12
-
€13,158 EUR
View
B+
Retailer 13
-
€15,278 EUR
£13,440 GBP
View
B
Retailer 14
-
€16,574 EUR
$18,517 USD
View
Retailer 15
-
€16,832 EUR
A$28,930 AUD
View
Price last confirmed 23 days ago
B
Retailer 16
-
€24,006 EUR
$26,820 USD
View
Most Expensive
Do Amore Diamonds
27-177AE55DD · Oct 30
€37,719 EUR
$42,140 USD
View
Price under review
16 more retailers have this diamond
Prices start from €6,045 EURSave up to €17,962 EUR

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
€6,045 EUR