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Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG691525873

Shape and cutting style on the report: Round brilliant

Certificate IGI LG691525873

Diamond specifications and retailer prices

From $3,292 USD
£2,592 GBP
As of October 29, 2026
Save $21,938 USD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $25,230 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown round diamond

This 4.18ct 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 LG691525873 or 691525873. Listed at 24 retailers as of October 29, 2026, with prices from $3,292 to $25,230, a $21,938 spread on the same certified stone. Do Amore Diamonds lists it at $25,230. 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

4.18
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691525873
Dimensions10.30 × 10.34 × 6.38 mm
L/W Ratio1.00
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
10.30 mm10.34 mm4.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691525873
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $9,114 USD|Low: $3,173 USD|High: $23,460 USD|Avg: $7,511 USD|+0.5%
Retailer 1
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
October 29, 2026
Retailer 10$3,292 USD
Retailer 16$3,305 USD
Retailer 8$3,596 USD
Retailer 3$3,834 USD
Retailer 12$3,835 USD
Retailer 7$3,840 USD
Retailer 15$5,288 USD
Retailer 11$5,489 USD
Retailer 5$5,951 USD
Retailer 9$6,701 USD
Retailer 13$8,971 USD
Retailer 1$9,114 USD
Retailer 14$9,177 USD
Retailer 4$9,644 USD
Retailer 6$14,587 USD
Retailer 2$23,460 USD

38 data points across 16 retailers

24 retailers$3,292 USD to $25,230 USD

A
Cheapest Retailer
-
$3,292 USD
£2,592 GBP
A
Retailer 2
-
$3,305 USD
View
A
Retailer 3
-
$3,596 USD
View
A
Retailer 4
-
$3,702 USD
View
Final sale: no returns
A
Retailer 5
-
$3,834 USD
View
A
Retailer 6
-
$3,834 USD
View
Price last confirmed 16 days ago
A
Retailer 7
-
$3,835 USD
View
A
Retailer 8
-
$3,840 USD
View
A
Retailer 9
-
$3,879 USD
View
A
Retailer 10
-
$5,288 USD
View
A
Retailer 11
-
$5,288 USD
View
A
Retailer 12
-
$5,489 USD
£4,322 GBP
View
A
Retailer 13
-
$5,951 USD
View
B+
Retailer 14
-
$6,701 USD
€6,382 EUR
View
B+
Retailer 15
-
$8,971 USD
ZAR 144,927 ZAR
View
B+
Retailer 16
-
$9,114 USD
£7,176 GBP
View
B+
Retailer 17
-
$9,177 USD
A$14,119 AUD
View
B+
Retailer 18
-
$9,644 USD
View
B+
Retailer 19
-
$10,134 USD
View
B
Retailer 20
-
$14,587 USD
SGD 19,712 SGD
View
B
Retailer 21
-
$14,930 USD
View
B
Retailer 22
-
$22,740 USD
View
B
Retailer 23
-
$23,460 USD
View
Most Expensive
B
Do Amore Diamonds
23-691525873 · Oct 29
$25,230 USD
View
23 more retailers have this diamond
Prices start from $3,292 USDSave up to $21,938 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.18ct Round
$3,292 USD