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1.45ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG756517000

Shape and cutting style on the report: Round brilliant

Certificate IGI LG756517000

Diamond specifications and retailer prices

From $404 NZD
$227 USD
As of October 29, 2026
Save $1,875 NZD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,279 NZD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.45ct lab-grown round diamond

This 1.45ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG756517000 or 756517000. Listed at 19 retailers as of October 28, 2026, with prices from $404 to $2,279, a $1,875 spread on the same certified stone. Reve Diamonds lists it at $2,279. 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

1.45
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756517000
Dimensions7.28 × 7.32 × 4.43 mm
L/W Ratio1.01
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
7.28 mm7.32 mm1.45 ctE / SI1
OriginLab Grown
CutVery Good
PolishGood
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756517000
Side View
Table 60.0%Crown 33.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.6%

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: $933 NZD|Low: $319 NZD|High: $2,279 NZD|Avg: $1,083 NZD|+7.3%
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
Retailer 15
Reve Diamonds
October 30, 2026
Retailer 4$404 NZD
Retailer 9$450 NZD
Retailer 11$468 NZD
Retailer 14$500 NZD
Retailer 15$502 NZD
Retailer 2$853 NZD
Retailer 7$933 NZD
Retailer 1$933 NZD
Retailer 8$946 NZD
Retailer 13$947 NZD
Retailer 12$1,050 NZD
Retailer 3$1,373 NZD
Retailer 5$1,611 NZD
Retailer 10$2,010 NZD
Retailer 6$2,030 NZD
Reve Diamonds$2,279 NZD

42 data points across 16 retailers

19 retailers$404 NZD to $2,279 NZD

Retailer 1
-
$401 NZD
$225 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$404 NZD
$227 USD
View
A
Retailer 3
-
$450 NZD
$253 USD
View
Final sale: no returns
A
Retailer 4
-
$468 NZD
$263 USD
View
Retailer 5
-
$490 NZD
$275 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$500 NZD
$281 USD
View
B+
Retailer 7
-
$502 NZD
$282 USD
View
B+
Retailer 8
-
$853 NZD
$479 USD
View
B+
Retailer 9
-
$933 NZD
$524 USD
View
B+
Retailer 10
-
$933 NZD
£413 GBP
View
B+
Retailer 11
-
$946 NZD
€506 EUR
View
B+
Retailer 12
-
$947 NZD
$532 USD
View
B+
Retailer 13
-
$1,050 NZD
$590 USD
View
B
Retailer 14
-
$1,373 NZD
$771 USD
View
Retailer 15
-
$1,597 NZD
$897 USD
View
Price last confirmed 39 days ago
B
Retailer 16
-
$1,611 NZD
$905 USD
View
B
Retailer 17
-
$2,010 NZD
£889 GBP
View
B
Retailer 18
-
$2,030 NZD
$1,140 USD
View
Most Expensive
C
Reve Diamonds
1D95EE906 · Oct 28
$2,279 NZD
$1,280 USD
View
18 more retailers have this diamond
Prices start from $404 NZDSave up to $1,875 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
1.45ct Round
$404 NZD