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12.03ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG850602287

Shape and cutting style on the report: Round brilliant

Certificate IGI LG850602287

Diamond specifications and retailer prices

From $5,988 NZD
£2,657 GBP
As of November 1, 2026
Save $20,301 NZD (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $26,289 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.03ct lab-grown round diamond

This 12.03ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG850602287 or 850602287. Listed at 8 retailers as of October 31, 2026, with prices from $5,988 to $26,289, a $20,301 spread on the same certified stone. Taylor and Hart lists it at $26,289. 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

12.03
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850602287
Dimensions14.82 × 14.90 × 8.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.82 mm14.90 mm12.03 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850602287
Side View
Table 61.0%Crown 31.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 58.9%

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: $10,761 NZD|Low: $5,988 NZD|High: $26,289 NZD|Avg: $15,602 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 1, 2026
Retailer 3$5,988 NZD
Retailer 4$9,696 NZD
Retailer 1$10,761 NZD
Retailer 2$13,954 NZD
Retailer 6$17,299 NZD
Retailer 5$18,747 NZD
Taylor and Hart$26,289 NZD

2 data points across 7 retailers

8 retailers$5,988 NZD to $26,289 NZD

A
Cheapest Retailer
-
$5,988 NZD
£2,657 GBP
A
Retailer 2
-
$7,456 NZD
$4,202 USD
View
A
Retailer 3
-
$9,696 NZD
£4,303 GBP
View
B+
Retailer 4
-
$10,761 NZD
$6,065 USD
View
B+
Retailer 5
-
$13,954 NZD
A$12,099 AUD
View
B
Retailer 6
-
$17,299 NZD
$9,750 USD
View
B
Retailer 7
-
$18,747 NZD
$10,566 USD
View
Most Expensive
B
Taylor and Hart
UEGDW5V · Oct 31
$26,289 NZD
$14,816 USD
View
7 more retailers have this diamond
Prices start from $5,988 NZDSave up to $20,301 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
12.03ct Round
$5,988 NZD