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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 $11,893 NZD
$6,703 USD
As of November 1, 2026
Save $62,308 NZD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $74,201 NZD at Do Amore Diamonds · As of October 31, 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 31, 2026, with prices from $11,893 to $74,201, a $62,308 spread on the same certified stone. Do Amore Diamonds lists it at $74,201. 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
Colour
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: Nov 1
Current: $31,735 NZD|Low: $11,418 NZD|High: $118,561 NZD|Avg: $28,229 NZD|-0.2%
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
Retailer 17
Retailer 18
November 1, 2026
Retailer 16$11,893 NZD
Retailer 7$12,369 NZD
Retailer 6$12,527 NZD
Retailer 9$13,320 NZD
Retailer 13$13,742 NZD
Retailer 2$13,795 NZD
Retailer 3$15,990 NZD
Retailer 15$16,125 NZD
Retailer 8$17,126 NZD
Retailer 12$18,666 NZD
Retailer 17$23,758 NZD
Retailer 11$29,898 NZD
Retailer 14$30,938 NZD
Retailer 1$31,735 NZD
Retailer 18$35,307 NZD
Retailer 4$44,001 NZD
Retailer 10$45,616 NZD
Retailer 5$118,561 NZD

44 data points across 18 retailers

23 retailers$11,893 NZD to $74,201 NZD

A
Cheapest Retailer
-
$11,893 NZD
$6,703 USD
A
Retailer 2
-
$12,369 NZD
$6,971 USD
View
A
Retailer 3
-
$12,527 NZD
$7,060 USD
View
A
Retailer 4
-
$13,320 NZD
$7,507 USD
View
Final sale: no returns
A
Retailer 5
-
$13,742 NZD
$7,745 USD
View
A
Retailer 6
-
$13,795 NZD
$7,775 USD
View
Retailer 7
-
$13,795 NZD
$7,775 USD
View
Price last confirmed 16 days ago
A
Retailer 8
-
$15,990 NZD
$9,012 USD
View
A
Retailer 9
-
$16,125 NZD
$9,088 USD
View
A
Retailer 10
-
$16,199 NZD
$9,130 USD
View
A
Retailer 11
-
$17,126 NZD
$9,652 USD
View
A
Retailer 12
-
$18,666 NZD
£8,284 GBP
View
A
Retailer 13
-
$23,758 NZD
$13,390 USD
View
B+
Retailer 14
-
$29,898 NZD
£13,268 GBP
View
B+
Retailer 15
-
$30,938 NZD
ZAR 281,690 ZAR
View
B+
Retailer 16
-
$31,735 NZD
A$27,517 AUD
View
B+
Retailer 17
-
$35,307 NZD
$19,899 USD
View
B+
Retailer 18
-
$37,968 NZD
$21,399 USD
View
B+
Retailer 19
-
$44,001 NZD
$24,799 USD
View
B+
Retailer 20
-
$45,616 NZD
$25,710 USD
View
B
Retailer 21
-
$50,985 NZD
$28,736 USD
View
Most Expensive
B
Do Amore Diamonds
27-A763EDBE5 · Oct 31
$74,201 NZD
$41,820 USD
View
21 more retailers have this diamond
Prices start from $11,893 NZDSave up to $62,308 NZD

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
$11,893 NZD