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Round|Lab Grown|IGI

3.55ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG691545113

Certificate IGI LG691545113

Diamond specifications and retailer prices

From $1,417 USD
Save $17,953 USD (93%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $19,370 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 LG691545113 or 691545113. Listed at 22 retailers, with prices from $1,417 to $19,370 at Brilliant Earth, a $17,953 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 angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691545113
Dimensions9.85 × 9.79 × 6.02 mm
L/W Ratio1.01
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
9.85 mm9.79 mm3.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691545113
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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: Oct 1
Current: $19,370 USD|Low: $1,058 USD|High: $19,380 USD|Avg: $4,477 USD|-0.1%
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 21
October 1, 2026
Retailer 13$1,417 USD
Retailer 8$1,779 USD
Retailer 7$1,784 USD
Retailer 19$2,069 USD
Retailer 20$2,248 USD
Retailer 15$2,414 USD
Retailer 10$2,864 USD
Retailer 6$2,865 USD
Retailer 12$2,879 USD
Retailer 9$3,099 USD
Retailer 5$3,474 USD
Retailer 4$3,503 USD
Retailer 21$4,532 USD
Retailer 11$4,782 USD
Retailer 16$4,914 USD
Retailer 3$4,996 USD
Retailer 2$5,152 USD
Retailer 18$5,329 USD
Retailer 17$6,278 USD
Retailer 14$7,582 USD
Brilliant Earth$19,370 USD

38 data points across 21 retailers

22 retailers$1,417 USD to $19,370 USD

A
Cheapest Retailer
-
$1,417 USD
A
Retailer 2
-
$1,779 USD
HK$13,900 HKD
View
A
Retailer 3
-
$1,784 USD
View
A
Retailer 4
-
$2,069 USD
£1,629 GBP
View
A
Retailer 5
-
$2,248 USD
View
A
Retailer 6
-
$2,414 USD
€2,299 EUR
View
A
Retailer 7
-
$2,864 USD
View
A
Retailer 8
-
$2,865 USD
View
A
Retailer 9
-
$2,879 USD
View
A
Retailer 10
-
$3,099 USD
A$4,768 AUD
View
A
Retailer 11
-
$3,474 USD
A$5,344 AUD
View
A
Retailer 12
-
$3,503 USD
ZAR 56,594 ZAR
View
B+
Retailer 13
-
$4,532 USD
View
B+
Retailer 14
-
$4,546 USD
View
B+
Retailer 15
-
$4,782 USD
View
B+
Retailer 16
-
$4,914 USD
SGD 6,641 SGD
View
B+
Retailer 17
-
$4,996 USD
£3,934 GBP
View
B+
Retailer 18
-
$5,152 USD
View
B+
Retailer 19
-
$5,329 USD
View
B+
Retailer 20
-
$6,278 USD
A$9,658 AUD
View
B
Retailer 21
-
$7,582 USD
£5,970 GBP
View
Most Expensive
B
Brilliant Earth
14267988A · Sep 29
$19,370 USD
View
21 more retailers have this diamond
Prices start from $1,417 USDSave up to $17,953 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
$1,417 USD