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Round|Lab Grown|IGI

11.54ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG581343778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG581343778

Diamond specifications and retailer prices

From $3,096 NZD
$1,745 USD
As of October 26, 2026
Save $18,213 NZD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $21,309 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 11.54ct lab-grown round diamond

This 11.54ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG581343778 or 581343778. Listed at 11 retailers as of October 26, 2026, with prices from $3,096 to $21,309, a $18,213 spread on the same certified stone. Do Amore Diamonds lists it at $21,309. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

11.54
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581343778
Dimensions14.63 × 14.68 × 8.81 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.63 mm14.68 mm11.54 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581343778
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.1%

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 26
Current: $21,309 NZD|Low: $3,096 NZD|High: $40,876 NZD|Avg: $14,068 NZD|-31.5%
Do Amore Diamonds
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
November 1, 2026
Retailer 12$3,096 NZD
Retailer 10$3,194 NZD
Retailer 16$4,922 NZD
Retailer 3$5,536 NZD
Retailer 11$5,669 NZD
Retailer 9$6,739 NZD
Retailer 7$7,676 NZD
Retailer 5$8,054 NZD
Retailer 15$9,296 NZD
Retailer 2$9,673 NZD
Retailer 4$9,999 NZD
Retailer 13$12,580 NZD
Retailer 14$19,001 NZD
Do Amore Diamonds$21,309 NZD
Retailer 6$28,069 NZD
Retailer 8$40,876 NZD

12 data points across 16 retailers

11 retailers$3,096 NZD to $21,309 NZD

A
Cheapest Retailer
-
$3,096 NZD
$1,745 USD
A
Retailer 2
-
$3,194 NZD
£1,418 GBP
View
Retailer 3
-
$4,922 NZD
$2,774 USD
View
Price last confirmed 13 days ago
Retailer 4
-
$5,536 NZD
$3,120 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$5,669 NZD
$3,195 USD
View
B+
Retailer 6
-
$6,739 NZD
$3,798 USD
View
Retailer 7
-
$9,296 NZD
$5,239 USD
View
Price last confirmed 11 days ago
B
Retailer 8
-
$9,673 NZD
£4,293 GBP
View
B
Retailer 9
-
$12,580 NZD
$7,090 USD
View
B
Retailer 10
-
$19,001 NZD
$10,709 USD
View
Most Expensive
B
Do Amore Diamonds
27-148F677EE · Oct 29
$21,309 NZD
$12,010 USD
View
10 more retailers have this diamond
Prices start from $3,096 NZDSave up to $18,213 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
11.54ct Round
$3,096 NZD