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Oval|Lab Grown|IGI

4.75ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG645423289

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG645423289

Diamond specifications and retailer prices

From $1,340 NZD
$755 USD
As of October 29, 2026
Save $3,543 NZD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,479 NZD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 4.75ct lab-grown oval diamond

This 4.75ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG645423289 or 645423289. Listed at 14 retailers as of October 29, 2026, with a 265% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.75
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645423289
Dimensions13.87 × 9.56 × 5.86 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.87 mm9.56 mm4.75 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645423289
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.3%

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: $7,479 NZD|Low: $939 NZD|High: $14,354 NZD|Avg: $3,276 NZD|-4.2%
Rare Carat
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
October 30, 2026
Retailer 5$939 NZD
Retailer 14$976 NZD
Retailer 3$1,050 NZD
Retailer 6$1,148 NZD
Retailer 8$1,164 NZD
Retailer 11$1,340 NZD
Retailer 9$1,800 NZD
Retailer 15$1,801 NZD
Retailer 4$1,914 NZD
Retailer 13$1,984 NZD
Retailer 12$3,002 NZD
Retailer 16$3,059 NZD
Retailer 7$3,526 NZD
Retailer 10$4,883 NZD
Retailer 2$7,239 NZD
Rare Carat$7,479 NZD

36 data points across 16 retailers

14 retailers$1,340 NZD to $4,883 NZD

Retailer 1
-
$939 NZD
$529 USD
Price last confirmed 37 days ago
Retailer 2
-
$976 NZD
£433 GBP
View
Price last confirmed 14 days ago
Retailer 3
-
$1,050 NZD
$592 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$1,148 NZD
$647 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$1,340 NZD
$755 USD
View
A
Retailer 6
-
$1,800 NZD
£799 GBP
View
B+
Retailer 7
-
$1,801 NZD
$1,015 USD
View
A
Retailer 8
-
$1,914 NZD
$1,079 USD
View
B+
Retailer 9
-
$3,002 NZD
$1,692 USD
View
Retailer 10
-
$3,059 NZD
$1,724 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
$3,526 NZD
$1,987 USD
View
B
Retailer 12
-
$4,883 NZD
£2,167 GBP
View
Retailer 13
-
$7,239 NZD
$4,080 USD
View
Price under review
Most Expensive
Rare Carat
596534 · Oct 21
$7,479 NZD
$4,215 USD
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from $1,340 NZDSave up to $3,543 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
4.75ct Oval
$1,340 NZD