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Round|Lab Grown|IGI

3.55ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG811672035

Certificate IGI LG811672035

Diamond specifications and retailer prices

From $1,089 USD
Save $10,531 USD (91%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $11,620 USD at Brilliant Earth
View at Brilliant Earth

About this 3.55ct lab-grown round diamond

This 3.55ct 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 LG811672035 or 811672035. Listed at 22 retailers, with prices from $1,089 to $11,620 at Brilliant Earth, a $10,531 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

3.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811672035
Dimensions9.91 × 9.87 × 5.95 mm
L/W Ratio1.00
Girdle conditionFaceted
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
9.91 mm9.87 mm3.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811672035
Side View
Table 58.0%Crown 33.9°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.2%

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 28
Current: $11,620 USD|Low: $964 USD|High: $19,370 USD|Avg: $3,966 USD|-40.0%
Brilliant Earth
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
Retailer 18
October 1, 2026
Retailer 15$1,219 USD
Retailer 6$1,263 USD
Retailer 12$1,616 USD
Retailer 17$1,831 USD
Retailer 11$1,900 USD
Retailer 2$1,981 USD
Retailer 14$2,000 USD
Retailer 16$2,562 USD
Retailer 9$2,810 USD
Retailer 5$2,855 USD
Retailer 8$2,942 USD
Retailer 7$3,256 USD
Retailer 13$4,030 USD
Retailer 3$4,138 USD
Retailer 18$4,336 USD
Retailer 4$4,414 USD
Retailer 10$5,820 USD
Brilliant Earth$11,620 USD

31 data points across 18 retailers

22 retailers$1,089 USD to $11,620 USD

A
Cheapest Retailer
-
$1,089 USD
A
Retailer 2
-
$1,219 USD
View
A
Retailer 3
-
$1,246 USD
View
A
Retailer 4
-
$1,263 USD
View
A
Retailer 5
-
$1,616 USD
View
A
Retailer 6
-
$1,836 USD
£1,445 GBP
View
A
Retailer 7
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$1,900 USD
View
A
Retailer 8
-
$1,981 USD
€1,887 EUR
View
A
Retailer 9
-
$2,000 USD
View
A
Retailer 10
-
$2,368 USD
View
A
Retailer 11
-
$2,562 USD
View
A
Retailer 12
-
$2,810 USD
View
A
Retailer 13
-
$2,855 USD
A$4,393 AUD
View
A
Retailer 14
-
$2,942 USD
ZAR 47,528 ZAR
View
Price last confirmed 10 days ago
A
Retailer 15
-
$3,256 USD
View
B+
Retailer 16
-
$3,935 USD
View
B+
Retailer 17
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$4,030 USD
View
B+
Retailer 18
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$4,138 USD
View
B+
Retailer 19
-
$4,336 USD
£3,414 GBP
View
B+
Retailer 20
-
$4,414 USD
View
B
Retailer 21
-
$5,820 USD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
20537003A · Oct 1
$11,620 USD
View
21 more retailers have this diamond
Prices start from $1,089 USDSave up to $10,531 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
3.55ct Round
$1,089 USD