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Round|Lab Grown|GIA

1.78ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 6472210025

Certificate GIA 6472210025

Diamond specifications and retailer prices

From $1,501 SGD
$1,171 USD
As of October 28, 2026
Save $414 SGD (22%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,915 SGD at GemTrove · As of October 29, 2026
View at GemTrove

About this 1.78ct lab-grown round diamond

This 1.78ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6472210025. Listed at 2 retailers as of October 28, 2026, with prices from $1,501 to $1,915, a $414 spread on the same certified stone. GemTrove lists it at $1,915. 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

1.78
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6472210025
Dimensions7.80 × 7.76 × 4.79 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.80 mm7.76 mm1.78 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6472210025
Side View
Table 57.0%Crown 35°Girdle: ThickPavilion 40.8°Culet: NoneDepth 61.6%

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 28
Current: $1,915 SGD|Low: $1,442 SGD|High: $3,872 SGD|Avg: $2,209 SGD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 9, 2026
Retailer 7$1,442 SGD
Retailer 2$1,501 SGD
Retailer 5$1,615 SGD
Retailer 6$1,741 SGD
GemTrove$1,915 SGD
Retailer 4$2,015 SGD
Retailer 3$3,838 SGD

53 data points across 7 retailers

2 retailers$1,501 SGD to $1,915 SGD

B
Cheapest Retailer
-
$1,501 SGD
$1,171 USD
Most Expensive
B+
GemTrove
GT-L-01020074-98 · Oct 29
$1,915 SGD
A$2,298 AUD
View
1 more retailer has this diamond
Prices start from $1,501 SGDSave up to $414 SGD

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+
1.78ct Round
$1,501 SGD