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1.55ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • GIA 3455059690

Certificate GIA 3455059690

Diamond specifications and retailer prices

From $1,136 NZD
£504 GBP
As of October 30, 2026
Save $1,705 NZD (60%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,841 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3455059690. Listed at 5 retailers as of October 29, 2026, with prices from $1,136 to $2,841, a $1,705 spread on the same certified stone. MOH London lists it at $2,841. 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

1.55
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 3455059690
Dimensions7.38 × 7.40 × 4.59 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.38 mm7.40 mm1.55 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3455059690
Side View
Table 57.0%Crown 35°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.1%

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: $2,841 NZD|Low: $1,134 NZD|High: $3,602 NZD|Avg: $2,300 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$1,136 NZD
Retailer 5$1,143 NZD
Retailer 3$1,164 NZD
Retailer 4$1,288 NZD
MOH London$2,841 NZD
Retailer 7$3,424 NZD
Retailer 6$3,602 NZD
Retailer 8$3,602 NZD

3 data points across 8 retailers

5 retailers$1,136 NZD to $2,841 NZD

B+
Cheapest Retailer
-
$1,136 NZD
£504 GBP
B+
Retailer 2
-
$1,143 NZD
$644 USD
View
B+
Retailer 3
-
$1,164 NZD
$656 USD
View
B+
Retailer 4
-
$1,288 NZD
$726 USD
View
Most Expensive
B
MOH London
3455059690 · Oct 29
$2,841 NZD
£1,261 GBP
View
4 more retailers have this diamond
Prices start from $1,136 NZDSave up to $1,705 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+
1.55ct Round
$1,136 NZD