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Oval|Lab Grown|IGI

4.00ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG789621375

Certificate IGI LG789621375

Diamond specifications and retailer prices

From $2,870 USD
Save $17,370 USD (86%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $20,240 USD at Brilliant Earth
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct 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 LG789621375 or 789621375. Listed at 26 retailers, with prices from $2,870 to $20,240 at Brilliant Earth, a $17,370 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

4.00
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789621375
Dimensions13.42 × 8.96 × 5.38 mm
L/W Ratio1.50
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
13.42 mm8.96 mm4.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789621375
Side View
Table 59.0%Crown 31.7°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.0%

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 29
Current: $20,240 USD|Low: $2,169 USD|High: $20,290 USD|Avg: $6,714 USD|-0.2%
Brilliant Earth
Retailer 2
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Retailer 22
September 29, 2026
Retailer 7$2,169 USD
Retailer 3$3,214 USD
Retailer 18$3,329 USD
Retailer 21$3,359 USD
Retailer 6$3,490 USD
Retailer 11$3,866 USD
Retailer 2$4,598 USD
Retailer 12$4,992 USD
Retailer 5$5,025 USD
Retailer 9$5,197 USD
Retailer 19$5,735 USD
Retailer 4$5,745 USD
Retailer 15$6,695 USD
Retailer 13$6,958 USD
Retailer 16$7,140 USD
Retailer 17$8,541 USD
Retailer 22$8,756 USD
Retailer 8$8,915 USD
Retailer 10$9,263 USD
Retailer 20$11,173 USD
Retailer 14$11,600 USD
Brilliant Earth$20,240 USD

34 data points across 22 retailers

26 retailers$2,870 USD to $20,240 USD

Cheapest Retailer
-
$2,870 USD
Retailer 2
-
$3,123 USD
View
A
Retailer 3
-
$3,214 USD
View
Retailer 4
-
$3,284 USD
View
A
Retailer 5
-
$3,329 USD
View
A
Retailer 6
-
$3,359 USD
View
A
Retailer 7
-
$3,490 USD
View
A
Retailer 8
-
$3,866 USD
HK$30,200 HKD
View
Retailer 9
-
$4,576 USD
View
A
Retailer 10
-
$4,604 USD
£3,625 GBP
View
A
Retailer 11
-
$4,992 USD
View
A
Retailer 12
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$5,025 USD
View
A
Retailer 13
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$5,197 USD
View
A
Retailer 14
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$5,735 USD
€5,462 EUR
View
A
Retailer 15
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$5,745 USD
£4,524 GBP
View
B+
Retailer 16
-
$6,695 USD
View
Price last confirmed 80 days ago
B+
Retailer 17
-
$6,958 USD
ZAR 112,415 ZAR
View
B+
Retailer 18
-
$7,140 USD
A$10,985 AUD
View
B+
Retailer 19
-
$8,541 USD
£6,725 GBP
View
B+
Retailer 20
-
$8,756 USD
View
B
Retailer 21
-
$8,915 USD
£7,020 GBP
View
B
Retailer 22
-
$8,998 USD
View
B+
Retailer 23
-
$9,263 USD
View
B
Retailer 24
-
$11,173 USD
SGD 15,099 SGD
View
B
Retailer 25
-
$11,600 USD
View
Most Expensive
B
Brilliant Earth
18674023A · Oct 1
$20,240 USD
View
25 more retailers have this diamond
Prices start from $2,870 USDSave up to $17,370 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
4.00ct Oval
$2,870 USD