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Round|Lab Grown|IGI

0.99ct E SI1 Round Lab Grown Diamond

GD • E/SI1 • IGI LG619440857

Shape and cutting style on the report: Round brilliant

Certificate IGI LG619440857

Diamond specifications and retailer prices

From $530 NZD
£235 GBP
As of October 30, 2026
Save $928 NZD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,458 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG619440857 or 619440857. Listed at 16 retailers as of October 29, 2026, with prices from $530 to $1,458, a $928 spread on the same certified stone. MOH London lists it at $1,458. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.99
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle37.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG619440857
Dimensions6.27 × 6.24 × 3.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.27 mm6.24 mm0.99 ctE / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG619440857
Side View
Table 55.0%Crown 37.7°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,458 NZD|Low: $471 NZD|High: $2,506 NZD|Avg: $818 NZD|-41.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 3$530 NZD
Retailer 5$544 NZD
Retailer 6$545 NZD
Retailer 9$578 NZD
Retailer 2$580 NZD
Retailer 7$683 NZD
Retailer 8$743 NZD
Retailer 4$1,054 NZD
Retailer 10$1,260 NZD
MOH London$1,458 NZD

43 data points across 10 retailers

16 retailers$530 NZD to $1,458 NZD

Retailer 1
-
$229 NZD
$129 USD
Price last confirmed 29 days ago
Retailer 2
-
$277 NZD
$156 USD
View
Price last confirmed 28 days ago
Retailer 3
-
$277 NZD
$156 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$296 NZD
$167 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$296 NZD
$167 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$530 NZD
£235 GBP
View
B+
Retailer 7
-
$545 NZD
$307 USD
View
B+
Retailer 8
-
$578 NZD
$326 USD
View
B+
Retailer 9
-
$580 NZD
£258 GBP
View
Retailer 10
-
$683 NZD
$385 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$701 NZD
$395 USD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
$743 NZD
$419 USD
View
Retailer 13
-
$953 NZD
$537 USD
View
Price last confirmed 39 days ago
B
Retailer 14
-
$1,054 NZD
$594 USD
View
Retailer 15
-
$1,260 NZD
$710 USD
View
Price last confirmed 12 days ago
Most Expensive
C
MOH London
LG619440857 · Oct 29
$1,458 NZD
£647 GBP
View
15 more retailers have this diamond
Prices start from $530 NZDSave up to $928 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.

B+
0.99ct Round
$530 NZD