Oval|Lab Grown|IGI

4.25ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG681578305

Certificate IGI LG681578305

Diamond specifications and retailer prices

From $2,999 USD
Save $18,501 USD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $21,500 USD at Brilliant Earth
View at Brilliant Earth

About this 4.25ct lab-grown oval diamond

This 4.25ct lab-grown oval 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 LG681578305 or 681578305. Listed at 23 retailers, with prices from $2,999 to $21,500 at Brilliant Earth, a $18,501 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

4.25
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578305
Dimensions12.90 × 9.22 × 5.77 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
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
12.90 mm9.22 mm4.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578305
Side View
Table 59.0%Crown 35.6°Girdle: MED-THKPavilion 40.7°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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 30
Current: $16,202 USD|Low: $2,199 USD|High: $18,360 USD|Avg: $6,389 USD|+1.4%
Retailer 1
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Retailer 21
October 1, 2026
Retailer 4$2,999 USD
Retailer 3$3,075 USD
Retailer 19$3,251 USD
Retailer 9$3,874 USD
Retailer 20$3,994 USD
Retailer 8$4,334 USD
Retailer 12$4,442 USD
Retailer 16$4,467 USD
Retailer 7$5,011 USD
Retailer 6$5,547 USD
Retailer 14$5,888 USD
Retailer 18$6,375 USD
Retailer 15$6,724 USD
Retailer 10$8,073 USD
Retailer 17$8,252 USD
Retailer 13$8,409 USD
Retailer 21$8,415 USD
Retailer 5$11,213 USD
Retailer 11$11,551 USD
Retailer 1$16,202 USD
Retailer 2$17,290 USD

37 data points across 21 retailers

23 retailers$2,999 USD to $21,500 USD

A
Cheapest Retailer
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$2,999 USD
A
Retailer 2
-
$3,075 USD
View
A
Retailer 3
-
$3,251 USD
View
A
Retailer 4
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$3,874 USD
View
A
Retailer 5
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$3,994 USD
HK$31,200 HKD
View
A
Retailer 6
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$4,334 USD
View
A
Retailer 7
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$4,448 USD
£3,502 GBP
View
A
Retailer 8
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$4,467 USD
View
A
Retailer 9
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$4,476 USD
£3,524 GBP
View
Price last confirmed 21 days ago
A
Retailer 10
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$5,011 USD
€4,772 EUR
View
A
Retailer 11
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$5,547 USD
£4,368 GBP
View
A
Retailer 12
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$5,888 USD
A$9,058 AUD
View
A
Retailer 13
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$6,375 USD
View
A
Retailer 14
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$6,724 USD
ZAR 108,619 ZAR
View
B+
Retailer 15
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$8,073 USD
View
B+
Retailer 16
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$8,252 USD
£6,498 GBP
View
B+
Retailer 17
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$8,409 USD
View
B+
Retailer 18
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$8,415 USD
View
B+
Retailer 19
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$11,213 USD
View
B+
Retailer 20
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$11,551 USD
SGD 15,609 SGD
View
B
Retailer 21
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$16,202 USD
A$24,926 AUD
View
B
Retailer 22
-
$17,290 USD
View
Most Expensive
B
Brilliant Earth
13509192Y · Oct 1
$21,500 USD
View
22 more retailers have this diamond
Prices start from $2,999 USDSave up to $18,501 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
4.25ct Oval
$2,999 USD