CaratHunter
Plans
Round|Lab Grown|IGI

5.51ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG605326954

Shape and cutting style on the report: Round brilliant

Certificate IGI LG605326954

Diamond specifications and retailer prices

From $6,703 USD
As of October 29, 2026
Save $35,117 USD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $41,820 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG605326954 or 605326954. Listed at 23 retailers as of October 29, 2026, with prices from $6,703 to $41,820, a $35,117 spread on the same certified stone. Do Amore Diamonds lists it at $41,820. 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

5.51
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605326954
Dimensions11.33 × 11.38 × 6.87 mm
L/W Ratio1.00
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
11.33 mm11.38 mm5.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605326954
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $10,520 USD|Low: $6,829 USD|High: $66,821 USD|Avg: $18,203 USD|+2.3%
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
October 30, 2026
Retailer 4$7,060 USD
Retailer 5$7,507 USD
Retailer 9$7,775 USD
Retailer 14$9,012 USD
Retailer 11$9,088 USD
Retailer 1$10,520 USD
Retailer 12$13,390 USD
Retailer 8$16,941 USD
Retailer 7$17,437 USD
Retailer 10$17,916 USD
Retailer 13$19,899 USD
Retailer 2$24,799 USD
Retailer 6$25,710 USD
Retailer 3$66,821 USD

42 data points across 14 retailers

23 retailers$6,703 USD to $41,820 USD

A
Cheapest Retailer
-
$6,703 USD
A
Retailer 2
-
$6,971 USD
View
A
Retailer 3
-
$7,060 USD
View
A
Retailer 4
-
$7,507 USD
View
Final sale: no returns
A
Retailer 5
-
$7,775 USD
View
A
Retailer 6
-
$7,775 USD
View
Retailer 7
-
$7,775 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
$9,012 USD
View
A
Retailer 9
-
$9,088 USD
View
A
Retailer 10
-
$9,130 USD
View
A
Retailer 11
-
$9,652 USD
View
A
Retailer 12
-
$10,520 USD
£8,283 GBP
View
A
Retailer 13
-
$13,390 USD
View
B+
Retailer 14
-
$16,941 USD
£13,339 GBP
View
B+
Retailer 15
-
$17,437 USD
ZAR 281,690 ZAR
View
Retailer 16
-
$17,916 USD
A$27,563 AUD
View
Price last confirmed 8 days ago
B+
Retailer 17
-
$19,899 USD
View
B+
Retailer 18
-
$21,399 USD
View
B+
Retailer 19
-
$24,799 USD
View
B+
Retailer 20
-
$25,710 USD
View
B
Retailer 21
-
$28,736 USD
View
Most Expensive
B
Do Amore Diamonds
27-A763EDBE5 · Oct 29
$41,820 USD
View
21 more retailers have this diamond
Prices start from $6,703 USDSave up to $35,117 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
5.51ct Round
$6,703 USD