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Oval|Lab Grown|IGI

1.74ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG510193309

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG510193309

Diamond specifications and retailer prices

From $405 NZD
$228 USD
As of October 29, 2026
Save $1,768 NZD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,172 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.74ct lab-grown oval diamond

This 1.74ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG510193309 or 510193309. Listed at 15 retailers as of October 26, 2026, with prices from $405 to $2,172, a $1,768 spread on the same certified stone. MOH London lists it at $2,172. 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

1.74
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG510193309
Dimensions9.53 × 6.80 × 4.31 mm
L/W Ratio1.40
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
9.53 mm6.80 mm1.74 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG510193309
Side View
Table 60.0%Crown 35.3°Girdle: MED-THKPavilion 41°Culet: NoneDepth 63.4%

Caratlytics Score

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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: $2,172 NZD|Low: $348 NZD|High: $2,195 NZD|Avg: $1,259 NZD|-0.9%
MOH London
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
October 31, 2026
Retailer 4$405 NZD
Retailer 14$452 NZD
Retailer 13$470 NZD
Retailer 8$502 NZD
Retailer 10$674 NZD
Retailer 7$935 NZD
Retailer 9$965 NZD
Retailer 5$971 NZD
Retailer 12$1,127 NZD
Retailer 11$1,613 NZD
Retailer 2$1,618 NZD
Retailer 3$1,706 NZD
Retailer 6$2,023 NZD
MOH London$2,172 NZD

43 data points across 14 retailers

15 retailers$405 NZD to $2,172 NZD

A
Cheapest Retailer
-
$405 NZD
$228 USD
A
Retailer 2
-
$452 NZD
$255 USD
View
Final sale: no returns
A
Retailer 3
-
$470 NZD
$265 USD
View
A
Retailer 4
-
$502 NZD
$283 USD
View
A
Retailer 5
-
$541 NZD
$305 USD
View
B+
Retailer 6
-
$674 NZD
$380 USD
View
A
Retailer 7
-
$935 NZD
£415 GBP
View
B+
Retailer 8
-
$965 NZD
$544 USD
View
Retailer 9
-
$971 NZD
€521 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$1,127 NZD
$635 USD
View
B
Retailer 11
-
$1,613 NZD
$909 USD
View
B+
Retailer 12
-
$1,618 NZD
$912 USD
View
B
Retailer 13
-
$1,706 NZD
$961 USD
View
Retailer 14
-
$2,023 NZD
$1,140 USD
View
Price last confirmed 12 days ago
Most Expensive
B
MOH London
LG510193309 · Oct 26
$2,172 NZD
£964 GBP
View
14 more retailers have this diamond
Prices start from $405 NZDSave up to $1,768 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
1.74ct Oval
$405 NZD