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Round|Lab Grown|IGI

4.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG712591461

Certificate IGI LG712591461

Diamond specifications and retailer prices

From $4,681 USD
Save $33,115 USD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $37,796 USD at Mervis Diamond Importers
View at Mervis Diamond Importers

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 LG712591461 or 712591461. Listed at 23 retailers, with prices from $4,681 to $37,796 at Mervis Diamond Importers, a $33,115 spread on the same certified stone. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712591461
Dimensions10.55 × 10.60 × 6.53 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
10.55 mm10.60 mm4.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712591461
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $37,796 USD|Low: $3,743 USD|High: $37,796 USD|Avg: $13,162 USD
Mervis Diamond Importers
Retailer 2
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Retailer 7
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Retailer 20
September 30, 2026
Retailer 6$4,736 USD
Retailer 18$5,185 USD
Retailer 19$5,242 USD
Retailer 2$5,430 USD
Retailer 5$5,465 USD
Retailer 12$7,342 USD
Retailer 14$7,579 USD
Retailer 11$7,853 USD
Retailer 3$8,372 USD
Retailer 4$11,414 USD
Retailer 16$12,343 USD
Retailer 13$12,524 USD
Retailer 15$13,199 USD
Retailer 8$14,946 USD
Retailer 17$17,197 USD
Retailer 20$17,741 USD
Retailer 9$21,444 USD
Retailer 7$27,640 USD
Retailer 10$32,200 USD
Mervis Diamond Importers$37,796 USD

34 data points across 20 retailers

23 retailers$4,681 USD to $37,796 USD

Cheapest Retailer
-
$4,681 USD
A
Retailer 2
-
$4,736 USD
View
Retailer 3
-
$4,905 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$5,185 USD
View
A
Retailer 5
-
$5,242 USD
View
Retailer 6
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$5,355 USD
View
A
Retailer 7
-
$5,430 USD
View
A
Retailer 8
-
$5,465 USD
View
Retailer 9
-
$7,115 USD
View
A
Retailer 10
-
$7,342 USD
View
A
Retailer 11
-
$7,596 USD
£5,981 GBP
View
B+
Retailer 12
-
$8,372 USD
View
B+
Retailer 13
-
$11,414 USD
View
B+
Retailer 14
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$12,343 USD
£9,719 GBP
View
B+
Retailer 15
-
$12,524 USD
ZAR 202,327 ZAR
View
B+
Retailer 16
-
$13,199 USD
A$20,306 AUD
View
B
Retailer 17
-
$14,946 USD
View
B
Retailer 18
-
$17,197 USD
View
B
Retailer 19
-
$17,741 USD
View
B
Retailer 20
-
$21,444 USD
View
B
Retailer 21
-
$27,640 USD
View
B
Retailer 22
-
$32,200 USD
View
Most Expensive
B
Mervis Diamond Importers
1985409131 · Sep 30
$37,796 USD
View
22 more retailers have this diamond
Prices start from $4,681 USDSave up to $33,115 USD

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.

A
4.51ct Round
$4,681 USD